Young women today often spend ten or 15 years on the oral contraceptive pill before they decide the time is right to stop taking it and have a baby. Although many women will fall pregnant immediately, for others it may take significantly longer. It may even take a while for them to restart their periods. They worry that the Pill may have reduced their fertility, while forgetting about the years of painless regular periods, and protection from pelvic infections and unwanted pregnancies.
They can be reassured that experts are agreed that 'There is no evidence that the Pill causes infertility'.
Most women who had regular periods before starting the Pill will find that regular ovular cycles return within six months of stopping it. Irregular cycles before the Pill may indicate PCOS (Polycystic Ovarian Syndrome), with the cyclic hormones in the Pill regularising cycles. Weight, health, stress and exercise can also influence a woman's pattern of menstruation, as the following stories illustrate.
If you are planning a pregnancy, it is not unusual for the body to take 3 months to get "synchronized" after going off the pill. In rare instances, it may take as long as 6 months. However, your fertility may return as early as the cycle immediately following discontinuation of the pill. Therefore, use a back-up contraceptive method after stopping the pill until you are ready to become pregnant.
Hope that helps! And good luck!