i am on a combination birth control (Tri-Cylen Lo) and take it pretty consistently at 6:30 every morning. I've been on it for 3 almost 4 months now and I've been late taking it only a handful of times (only an hour or 2 late).

With that being said, I had unprotected sex with my boyfriend about a week ago and am concerned about getting pregnant. Im supposed to get my period in 3 days but haven't had any symptoms like usual.

What are the chances I could be pregnant if at all?