A little over a month ago I had an incident with a condom possibly breaking went out an got plan B. To make the story short I didn't get my period an my period was 15 days late. I went to plan parent hood got a pregnancy test an put birth control that same day. I was put on Aubra, (pretty sure I am spelling that right.) I started the pill on the 21st of august. About two week into the pill (10 days ish ) I has with draw bleeding I am guessing from the hormones getting regulated? I have been taking the pill at the same day every day 5:30pm there has only been one day where I took the pill at 5:00 and there was one day I took the pill almost a little bit after 6pm. One day I lost a pill having the take the next one in the pack an I have just been going on with the pack like normal. Well one night me an my boyfriend were doing the deed and he couldn't find a condom so he stuck it in with out one but he pulled out. I know though that the pull out method is not birth control. I was 13 days in on the pill the woman at the clinic said that with the pill only the first 7 days I HAVE to use back up contraception. So at the time I didn't think to much about it since I was on birth control an take it at the same time everyday I should be fine. But I got rather nervous a few days after the fact and it was too late (and it sure way to late now) to get ec an take it. But now here I am on the last row of pills when I should be getting my period 3 pills in an nothing I wore a pad yesterday an there was some brownish spots on the pad but I figured it could be pee since there is nothing when I wipe. I am a bit nervous even though I try not to be. If I do not get my period what are the chances that it is from pregnancy I am also stressed because I think my mom noticed I didn't have a period last month an is starting to question little things. She doesn't know I have had sex yet. Any advice or help please.