Q. How long should I wait to TTC after stopping birth control pills?
A. We recommend three months. The only real reason to wait is because just after stopping pills, women don't always ovulate in the middle of their cycles, and the cycles can be irregular, so it can be hard to estimate a due date in the usual way. If you get pregnant in the first 90 days after stopping the pills, you will usually get an ultrasound fairly early to make sure of the due date.
If you do conceive in the first 90 days after stopping, don't worry. The pills don't hurt the baby. They were actually invented to help people get pregnant who were having a hard time. Worked great for a 41-year-old client I have now!