 [ Symptoms ] just stopped taking birth control realistically how long could it take me to get pregnant  i am 21 and have been taking yaz religiously since i was 15 or 16 i stopped taking the pills during week 3 of my last pack and started my period 3 days later how could my taking birth control for so long effect my chances of getting pregnant also before i started on the pill my period was very heavy and very irregular how should i go about timing when to take pregnancy tests [ Disease ] well once you get off the bc you can get pregnant although for some couples out there it does take a few months before actually getting pregnant i would say try to check when your ovulating so you know when to have sex and you know when it would be more likely for you to get pregnant