I've been on lutera for 2 1/2 years. I've been taking my pill on time everyday at the same time(11:59am) . I had unprotected sex on the 16th of September my bf did pull out (he might have gotten a little bit on the outside but im not sure) and I got my period on the 21st (1day later than usually) and it only went for 1day and now I only get like Brownish color stuff a little bit. I took a pregnancy test on the 24th in the evening (7days after having unprotected sex) and it was negative. But I still haven't had my normal period can I be pregnant???