About a week and a half ago, I had unprotected sex. I take birth control religiously so I wasn't really concerned. 5 days after having sex, i ate dinner and then took my pill. Because of what I ate, I ended up getting food poisoning and threw my pill up 35 minutes after taking it. I didn't take another pill that night because I wanted to stay on schedule. Since the next day on I've been taking my BC at the proper time every day. But now I noticed I have cramping and weird light bleeding and I'm not due for my period for another week. Can I be pregnant if I missed a pill 5 days AFTER having unprotected sex?