Reproductive Outcomes in Lesbian Couples Undergoing Reception of Oocytes from Partner Versus Autologous Fertilization/Intracytoplasmic Sperm Injection.

This study aimed to compare reproductive outcomes after Reception of Oocytes from Partner (ROPA; also called reciprocal fertilization) with those after fertilization/intracytoplasmic sperm injection (IVF/ICSI) with autologous oocytes, in lesbian couples. This was a retrospective matched cohort study of couples performing a first cycle of either ROPA ( = 60) or autologous IVF/ICSI ( = 120) between February 2012 and May 2018. Couples were matched 1:2 by age of the oocyte provider, day of embryo transfer (ET), and number of embryos transferred. Pregnancy and live birth rates after the first ET and cumulative results after all subsequent ETs performed until June 2019 were evaluated. Reproductive outcomes were significantly better after ROPA at first ET: biochemical pregnancy 70.0% versus 47.5% ( = 0.004), clinical pregnancy 60.0% versus 40.0% ( = 0.011), ongoing pregnancy 60.0% versus 36.7% ( = 0.003), and live birth 57.1% versus 29.8% ( = 0.001). After adjusting for age, body mass index, and number of mature oocytes, we still observed a significant improvement across all outcomes in ROPA (live birth rate odds ratio [OR]: 3.05, 95% confidence interval [CI] 1.42-6.57). Cumulative pregnancy and live birth rates were also higher after ROPA (live birth 66.1% vs. 43.4% [ = 0.005]). The adjusted analysis result for cumulative live birth was OR: 2.51, 95% CI: 1.14-5.54. When medically indicated, ROPA can potentially improve reproductive outcomes for lesbian couples through the possibility of selecting the best combination between two oocyte providers and two gestational mothers, provided that both women wish to participate in the pregnancy plan.