Fertility after stopping different methods of contraception

Area of Science:

• Reproductive Health
• Contraception Research
• Clinical Epidemiology

Background:

• Understanding the return of fertility post-contraception is crucial for family planning.
• Previous studies have yielded mixed results regarding the impact of oral contraceptives on subsequent fertility.

Purpose of the Study:

• To investigate the time to return of fertility after discontinuing oral contraceptives (OCs) compared to other contraceptive methods.
• To assess potential long-term effects of OCs on female fertility.

Main Methods:

• Analysis of data from the Oxford-Family Planning Association contraceptive study.
• Measuring return of fertility by time to subsequent childbirth.
• Comparison between women discontinuing OCs and those using other contraceptive methods.

Main Results:

• Initial fertility impairment observed in women stopping OCs compared to other methods.
• Fertility impairment became negligible by 30-42 months post-cessation for nulligravidae and multiparae, respectively.
• Impairment appeared independent of the duration of OC use; data for IUD users were reassuring.

Conclusions:

• Discontinuing oral contraceptives may lead to temporary fertility impairment.
• Long-term use of oral contraceptives is unlikely to result in permanent female sterility.
• Further data on IUD users suggest reassuring fertility outcomes.