Conceiving following 2 1/2 years on birth control ( the pill)

Hello! Just curious if anyone had difficulty getting pregnant following being on birth control? I am kind of baffled because I have a daughter that is almost 3 and I conceived her the first month following discontinuing birth control. It has been two months since my withdraw bleed from stopping birth control and I have yet to get a "real period." Any suggestions on what to do? I know it's too early to think infertility.