Okay, so I started birth control. Was taking it for one month exactly, and the last week of the sugar pills I got my period as I was suppose to. I started my second pack and the next day my boyfriend cummed inside me.. We found out after I wasnt completely done my period due to a little bit of blood. What are the chances I got pregnant from that? I'm just freaking out a little bit because that's the first time he ever has. I always take my pill at the same time every day, and if not I think the latest I've been is 10 minutes. Also, I'm on Alysena 28.