ANDERSON, Circuit Judge.

Ms. Geneva Gallegos was convicted of possession with intent to distribute more than 50 grams of crack cocaine, in violation of 21 U.S.C. § 841(a). After finding Gallegos qualified for an acceptance of responsibility adjustment and departing downward from the Sentencing Guidelines range, the district court sentenced her to 34 months in prison, followed by five years supervised release. The court departed downward from Gallegos' base offense level based on five factors:

(1) an inexplicable disparity of sentences between Gallegos and co-defendant John Paul Wilbon, (2) Gallegos' minor role in the offense, which was limited to the four to six weeks she lived with co-defendant Levone Ray Maden, (3) the court's finding that Gallegos was "under significant influence, domination, and manipulation" because of her youth and her dependance on Maden for her daily needs, (4) Gallegos' lack of criminal history, and (5) Gallegos' family responsibilities as the sole support for her six-year-old son and partial support for her parents. R. Vol. III at 11-14. The Government appeals, alleging the district court erred in departing from the Sentencing Guidelines on these bases. The Government also appeals the district court's finding that Gallegos qualified for an acceptance of responsibility adjustment. We vacate the sentence and remand for resentencing.

BACKGROUND

In March 1994, while executing a fugitive arrest warrant for co-defendant Maden, FBI agents found large quantities of crack cocaine in an apartment shared by Maden and Ms. Gallegos. A third defendant, Wilbon, was found in the apartment at the time of entry and was arrested along with Maden and Gallegos. All three were charged with possession with the intent to distribute more than 50 grams of a mixture or substance which contains cocaine base, and after a jury trial in January 1996, Gallegos and Maden were convicted. Pursuant to a plea agreement, Wilbon pleaded guilty to a lesser charge of possession with intent to distribute less than five grams of crack cocaine.

At her initial sentencing hearing in July 1996, Gallegos testified that she had assisted Maden in his drug dealing prior to the night of her arrest. In particular, Gallegos admitted to distributing drugs from a motel room, renting motel rooms with the knowledge drug activity would be conducted there, accompanying Maden on drug-distribution trips, and responding to calls for drugs. R. Supp. Vol. I at 10-13.

When the sentencing hearing resumed in September 1996, the district court accepted the recommendation of the presentence report ("PSR") that Gallegos' base offense level should be 34 under USSG Section(s) 2D1.1(c)(3), and also accepted the PSR recommendation that Gallegos receive a two-level downward adjustment as a minor participant pursuant to USSG Section(s) 3B1.2. In addition, the court found that Gallegos qualified for the safety-valve provision of USSG Section(s) 5C1.2, which freed Gallegos from the ten-year statutory minimum sentence and earned her a further two-level downward adjustment. Furthermore, the court found Gallegos deserving of a downward adjustment for acceptance of responsibility under USSG Section(s) 3E1.1(a); however, it is unclear whether this adjustment was actually granted. Finally, the court departed downward from the base offense level eleven levels and sentenced Gallegos to 34 months' imprisonment, followed by five years supervised release.

DISCUSSION [7] I. Departure from the Guidelines

We review a district court's decision to depart from the Sentencing Guidelines for abuse of discretion. Koon v. United States, 116 S.Ct. 2035, 2047-48 (1996); United States v. Lowe, 106 F.3d 1498, 1501 (10th Cir.), cert. denied, 117 S.Ct. 2494 (1997). In Koon, the Court found "[a] district court's decision to depart from the Guidelines . . . will in most cases be due substantial deference, for it embodies the traditional exercise of discretion by a sentencing court." Id. at 2046. The Court reasoned that district courts have an "institutional advantage" over appellate courts in making departure decisions since they deal with such determinations on a daily basis. Id. at 2046-47.

Nevertheless, the Court also concluded that "whether a factor is a permissible basis for departure under any circumstances is a question of law, and the court of appeals need not defer to the district court's resolution of the point." Id. at 2047. "The abuse of discretion standard includes review to determine that the discretion was not guided by erroneous legal conclusions." Id. at 2048. We have summarized our analysis as:

(1) whether the factual circumstances supporting a departure are permissible departure factors; (2) whether the departure factors relied upon by the district court remove the defendant from the applicable Guideline heartland thus warranting a departure, (3) whether the record sufficiently supports the factual basis underlying the departure, and (4) whether the degree of departure is reasonable.

United States v. Collins, 122 F.3d 1297, 1303 (10th Cir. 1997). The first inquiry is a legal question, the second is factual.

In general, a court must impose a sentence within the guideline range unless it finds "there exists an aggravating or mitigating circumstance of a kind, or to a degree, not adequately taken into consideration by the Sentencing Commission in formulating the guidelines that should result in a sentence different from that described." 18 U.S.C. § 3553(b); see USSG Section(s) 5K2.0, p.s. We therefore address each factor relied on by the district court to see whether the factor is encouraged and ordinarily relevant to the sentencing determination, and if so, if it has already been taken into consideration by the guidelines. If the factor is discouraged and not ordinarily relevant, or is encouraged but has already been taken into consideration by the guidelines, we then determine whether the "characteristic or circumstance is present to an unusual degree and distinguishes the case from the 'heartland' cases covered by the guidelines in a way that is important to the statutory purposes of sentencing." USSG Section(s) 5K2.0, p.s.

A. Disparity of Sentences

The first ground for departure relied on by the district court was the disparity of sentences between Gallegos and co-defendant Wilbon. R. Vol. III at 12. The court recognized that Wilbon was sentenced to only 30 months in prison, while Gallegos, who played only "a minor role in the instant offense and was equally [or] less culpable," faced a potential sentence exposure of ten years. R. Vol. III at 11-12. The Government argues that the disparity between Gallegos' guideline range and Wilbon's sentence did not provide a lawful basis for departure. Appellant's Br. at 15-21. We agree.

It is true that in imposing a sentence, the district court should consider, inter alia, "the need to avoid unwarranted sentence disparities among defendants with similar records who have been found guilty of similar conduct." 18 U.S.C. § 3553(a)(6). However, the purpose of the guidelines is to "eliminate unwarranted disparities [in sentencing] nationwide," United States v. Garza, 1 F.3d 1098, 1100 (10th Cir. 1993), not to eliminate disparity between co-defendants. This circuit has stated that "neither Congress nor the [Sentencing] Commission could have expected that the mere fact of a difference between the applicable guideline range for a defendant [and] that of his co-defendant would permit a departure, either because the difference was too large or too small." Id.; see United States v. Joyner, 924 F.2d 454, 460-61 (2d Cir. 1991) ("To reduce the sentence by a departure because the judge believes that the applicable range punishes the defendant too severely compared to a co-defendant creates a new and entirely unwarranted disparity between the defendant's sentence and that of all similarly situated defendants throughout the country.").

In particular, a departure based on a disparity between co-defendants is not justified when sentences are dissimilar because of a plea bargain.

[A] trial judge may not reduce a defendant's sentence on the mere basis that a co-defendant who engaged in similar conduct but agreed to plead guilty to lesser charges received a lighter sentence. Any rule to the contrary would invade the United States Attorney's broad prosecutorial discretion. Moreover, "allowing a defendant's sentence to be reduced on account of a codefendant's plea bargain may tend to discourage the government from offering plea bargains in cases involving multiple defendants."

United States v. Contreras, 108 F.3d 1255, 1271 (10th Cir.) (quoting United States v. Mejia, 953 F.2d 461, 468 (9th Cir. 1992)), cert. denied, No. 96-9286, 1997 WL 336905 (U.S. Oct. 6, 1997). Here, Ms. Gallegos went to trial and was convicted of possession with intent to distribute more than 50 grams of crack cocaine, while Wilbon, on the other hand, pled guilty to the lesser charge of possession with intent to distribute less than five grams of crack cocaine. Because of Wilbon's plea bargain, Gallegos and Wilbon were not similarly situated and any disparity in their sentences is explicable. See Contreras, 108 F.3d at 1271 ("[W]hile similar offenders engaged in similar conduct should be sentenced equivalently, disparate sentences are allowed where the disparity is explicable by the facts on the record.") (quotations and citations omitted). We therefore conclude that the district court erred in reducing Ms. Gallegos' sentence based upon disparity with the sentence of a co-defendant who pled guilty to a lesser charge.

B. Minor Role

Next, the district court relied on Gallegos' limited role in the offense in granting the departure. The court determined that Gallegos played a minor role in the drug activity as compared to co-defendant Wilbon, R. Vol. III at 11, and noted that Gallegos' involvement in the drug activity was limited to the time she lived with co-defendant Maden. R. Vol. III at 12. The Government asserts that this factor, although ordinarily relevant, had been already accounted for in the guidelines. Appellant's Br. at 21-24. We agree.

A defendant's role in the offense is ordinarily relevant in determining the appropriate sentence. USSG Section(s) 5H1.7, p.s. However, in Gallegos' circumstances, this factor had already been adequately accounted for in the guidelines by Section(s) 3B1.2. See Koon, 116 S.Ct. at 2045 (stating that relevant factors do not justify departure when already taken into consideration by the guidelines, unless present to an exceptional degree). Under Section(s) 3B1.2, a defendant can receive a downward adjustment of four levels if the defendant's participation in the offense was minimal, two levels if the defendant's participation was minor, and three levels if the defendant's participation falls between minimal and minor. USSG Section(s) 3B1.2. Here, the court granted Ms. Gallegos only a two-level adjustment as a minor participant, but then granted her an additional downward departure under Section(s) 5H1.7. In this instance, we see no basis for doing more for Gallegos than the guidelines provided for in Section(s) 3B1.2, and if such basis exists, the district court did not point it out, and Gallegos' counsel cited no authority in support it. In particular, the court erred in departing from the guidelines without explaining why the guideline adjustment provisions were inadequate to account for Gallegos' circumstances. See USSG Section(s) 5K2.0 ("[T]he court may depart from the guidelines, even though the reason for departure is taken into consideration in the guidelines (e.g., as a specific offense characteristic or other adjustment), if the court determines that, in light of unusual circumstances, the guideline level attached to that factor is inadequate."). We therefore conclude that the district court erred in granting without explanation an additional departure for minor role under Section(s) 5H1.7.

C. Coercion

Next, the district court inferred that Ms. Gallegos was subject to coercion, stating that Maden subjected her to "significant influence, domination, and manipulation." R. Vol. III at 12. The Government asserts that this influence is not extraordinary and does not rise to a level of coercion which the guidelines might countenance. Appellant's Br. at 24-28. We agree.

The guidelines state that "[o]rdinarily coercion will be sufficiently serious to warrant departure only when it involves a threat of physical injury, substantial damage to property or similar injury resulting from the unlawful action of a third party or from a natural emergency." USSG Section(s) 5K2.12, p.s. Here, the record contains no evidence of threats made by Maden to Gallegos; the only evidence offered by the defense was Gallegos' comment at the sentencing hearing that she refused to testify against co-defendant Maden because at the time she was "just scared" and "[didn't] know if he would, you know, try to threaten [her] in any way." R. Supp. Vol. I at 35.

Furthermore, to justify a departure, the alleged coercion must have caused the defendant to commit the criminal act. USSG Section(s) 5K2.12, p.s. (stating that departure is allowed "[i]f the defendant committed the offense because of serious coercion . . . or duress"). In this case there is no evidence in the record of a causal connection — no evidence that Gallegos was afraid of Maden at the time she lived with him and participated in the drug activity. Thus, even if Gallegos' fear of Maden at the time of trial were sufficient to qualify as coercion under the guidelines, departure is still not justified because Gallegos has failed to show that this fear caused her to participate in the drug activity. Because the record shows no threats made to Gallegos by Maden, and there is no evidence of a causal connection, the coercion factor is an impermissible basis for departure in this case.

D. Criminal History

Next, in granting the departure, the district court relied on the fact that Gallegos had no prior criminal history. R. Vol. III at 12. The Government asserts that in this case it was impermissible for the district court to use Gallegos' lack of criminal history as a basis for downward departure. Appellant's Br. at 28-30. We agree.

"The lower limit of the range for Criminal History Category I is set for a first offender with the lowest risk of recidivism. Therefore, a departure below the lower limit of the guideline range for Criminal History Category I on the basis of the adequacy of the criminal history cannot be appropriate." USSG Section(s) 4A1.3, p.s.; see United States v. Maldonado-Campos, 920 F.2d 714, 719 (10th Cir. 1990) ("In downward departures, the court ordinarily will look to the next-lower criminal history category for guidance, however, a departure below criminal history category I is not appropriate.") (citations omitted). Thus, although criminal history is ordinarily relevant in determining the appropriate sentence, USSG Section(s) 5H1.8, this factor was already taken into account when the court placed Gallegos in criminal history category I and any further downward departure was inappropriate.

E. Family Responsibilities

Finally, the court relied on Gallegos' family responsibilities in granting the departure, finding that she provides the sole support for her six-year-old son and partial support for her parents. R. Vol. III at 12. The Government argues that Gallegos' circumstances fall within the heartland and thus cannot be a lawful basis for departure. Appellant's Br. at 30-35. We agree.

Although in the past this circuit has affirmed departures in cases involving family responsibilities, see, e.g., United States v. Pena, 930 F.2d 1486 (10th Cir. 1991); United States v. Tsosie, 14 F.3d 1438 (10th Cir. 1994), family responsibilities is in general a disfavored ground for departure. USSG Section(s) 5H1.6. As such, any family circumstances must be extraordinary before a departure can be justified. In both Pena and Tsosie, the family circumstances alone were not extraordinary; rather, the departures were based primarily on aberrant behavior, supported by family responsibilities. See Pena, 930 F.2d at 1495 ("The aberrational character of her conduct, combined with her responsibility to support two infants, justified a departure."); Tsosie, 14 F.3d at 1441-42 ("Tsosie's steady employment, economic support of his family, combined with his aberrational conduct . . . were properly considered by the court in departing downward.").

Gallegos concedes that in her case, family responsibilities alone do not take her case out of the heartland, and thus is not a sufficient ground for departure, Appellee's Br. at 21 (citing Tsosie), but argues that she deserves a departure based on a totality of circumstances analysis similar to that used in Pena and Tsosie. Appellee's Br. at 21. However, this is not possible because we have concluded that the other four factors considered by the court in addition to family responsibilities were inappropriate grounds for departure. Thus, we conclude that Gallegos' family circumstances, although regrettable, fall within the heartland contemplated by the guidelines and do not justify a departure.

II. Acceptance of Responsibility Adjustment

In addition to departing downward from the base offense level, the district court found Ms. Gallegos deserving of a downward adjustment for acceptance of responsibility pursuant to Section(s) 3E1.1, based on her post-trial written statement of February 1996 and her testimony at the initial sentencing hearing. R. Vol. III at 10. In response, the Government argues that Gallegos was disqualified from the acceptance of responsibility credit. Appellant's Br. at 35-38. We agree.

A district court has broad discretion to grant or deny an adjustment for acceptance of responsibility, and a court of appeals should not reverse the district court's decision unless it is clearly erroneous. United States v. Jaynes, 75 F.3d 1493, 1508 (10th Cir. 1996); see USSG Section(s) 3E1.1, comment. (n. 5) ("[T]he determination of the sentencing judge is entitled to great deference on review."). However, the defendant bears the burden of proving she is entitled to a reduction under Section(s) 3E1.1. Jaynes, 75 F.3d at 1508; United States v. Ivy, 83 F.3d 1266, 1292 (10th Cir.), cert. denied, 117 S.Ct. 253 (1996); United States v. Whitehead, 912 F.2d 448, 450 (10th Cir. 1990).

We are not persuaded that in this case the defendant has met that burden. Referring to acceptance of responsibility, the Sentencing Guidelines state, "This adjustment is not intended to apply to a defendant who puts the government to its burden of proof at trial by denying the essential factual elements of guilt, is convicted, and only then admits guilt and expresses remorse." USSG Section(s) 3E1.1, comment. (n. 2). Clearly, "[t]he timeliness of the defendant's acceptance of responsibility is a consideration." Id. at comment. (n. 6). Forcing the government to prove its case at trial and then expressing remorse, as Gallegos has done, is not a timely acceptance of responsibility. See, e.g., United States v. Jaramillo, 98 F.3d 521, 526 (10th Cir.) (finding defendant not entitled to reduction in sentence for acceptance of responsibility where defendant contested his guilt and gave inadequate initial statement of acceptance of responsibility), cert. denied, 117 S.Ct. 499 (1996); Ivy, 83 F.3d at 1293 ("[A] defendant who denies factual guilt and forces the government to prove it at trial is not entitled to a reduction for acceptance of responsibility . . . ."); United States v. Portillo-Valenzuela, 20 F.3d 393, 394 (10th Cir. 1994) ("Pleading not guilty and requiring the government to prove guilt at trial demonstrate denial of responsibility . . . ."); United States v. McCollum, 12 F.3d 968, 973 (10th Cir. 1993) (affirming district court's denial of acceptance of responsibility adjustment where defendant went to trial).

Although choosing to proceed to trial "does not automatically preclude a defendant from consideration for such a reduction," if a defendant does choose trial, "a determination that a defendant has accepted responsibility will be based primarily upon pre-trial statements and conduct." USSG Section(s) 3E1.1, comment. (n. 2). Here, because the district court relied solely on statements Ms. Gallegos made after trial, the court erred in granting Gallegos an adjustment for acceptance of responsibility.

CONCLUSION

For the foregoing reasons, we VACATE the sentence imposed by the district court and we REMAND this case for resentencing not inconsistent with this opinion.