is the 3 month birth control effective after 1 week? I haven't had my period yet.): it was just a couple of in and outs. I know tmi but I'm terrified of being pregnant again.
It should be effective after a couple days. The pills recommend 48 hours before sexual activity. And if you're nursing, your likelihood of pregnancy is even lower.
It's been almost ten years since I was on the shot, but if I remember correctly, I don't believe I got a period at all on the shot! It's extremely effective so I would try not to worry.
Re: Uh oh. Birth control shot!