I started taking birth control on October 13, 2013. I've been worried that I may be pregnant though. I read the information pamphlet that came with my pills, and it said that you have to take them for at least seven days for them to have the full effect that is intended. My boyfriend and I had unprotected sex twice on October 18, 2013, which was only five days after I started my BC pills, and he came inside of me both times. I'm worried that I may be pregnant. My period is a week-and-a-half early, and I've been looking for different questions and answers online that are similar to my situation. I've been having lower back and abdominal pains and cramps, headaches (and dizziness, but very little), nausea (without vomiting), frequent urination, fatigue, food aversions, and slight mood changes. In the past couple of days, from time to time, I'll get a real sharp pain in my lower stomach and pelvic area, though I'm not sure if that's related or not. I've been under quite a bit of stress lately, so I know that could be the cause of some of my "symptoms", but I'm not sure what I should think. I have an appointment with my OB/GYN in a couple of weeks, so I'm going to talk to her about it then, but I'm very worried about this now. Could I be pregnant?