I usually take my birth control in the morning before I go to school but I had forgotten yesterday morning. I ended up going home with my boyfriend and having sex that night and he did not pull out. I took my pill as soon as I got home and took it on time this morning. I have felt kind of sick and have an awful headache but I'm not sure if I'm just freaking myself out or if I could have gotten pregnant. I'm usually very good about taking my pill on time and I've been on it for about 4 months.