A 31-year-old woman, 10 weeks postpartum, BMI 36, not breastfeeding, requests an oral contraceptive method. Which is most appropriate?

• A. Combined oral contraceptive pill
• B. Copper IUD
• C. Diaphragm
• D. Progesterone-only-pill (POP)

Answer: (D)

The key idea is choosing contraception in the postpartum period in a way that minimizes blood clot risk while matching the patient’s preferences and needs. After delivery, estrogen-containing methods carry a higher risk of venous thromboembolism, and this risk is even more concerning in someone with obesity (BMI 36). Even though she is not breastfeeding, that doesn’t remove the thrombosis concern with combined hormonal contraception.

Among the oral options, the progestin-only pill avoids estrogen entirely, so it presents a safer thrombosis profile for a recent postpartum patient with significant obesity. It also doesn’t impact lactation status (not a factor here since she’s not breastfeeding) and can be started in the postpartum period without the VTE risk associated with estrogen-containing pills.

The copper IUD, while highly effective and appropriate for some patients, is not an oral method and thus wouldn’t satisfy the request for an oral contraceptive. The diaphragm is a barrier method with higher typical-use failure and requires correct use and ongoing attention, making it less suitable when an effective, convenient oral option is preferred.

So, the progesterone-only pill best fits this scenario: it provides an oral, effective option with a lower thrombotic risk in the postpartum, obese patient compared with estrogen-containing pills. Be sure to counsel on daily adherence and potential irregular bleeding.