I have been taking birth control pills for 4 months now and on Friday 8th was the last day of my pill before I had to go through withdrawal bleeding for six days. Late Saturday/early Sunday I had unprotected sex and though the guy did pull out, it's not always a trustworthy method. I always get my period on Tuesday's but I didn't get it. Sunday morning after I went home, I was getting worked up about possibly being pregnant and on Monday afternoon after 35 hours of unprotected sex, I brought the morning after pill. Tuesday morning at midnight, I went to the bathroom and there was red blood on my tissue like a period but then throughout Tuesday and Wednesday, there was no sign of my period except for when I woke up in the morning and I'd wipe and there'd be the blood. I take my new pack of birth control pills today (Thursday) and I'm really worried that I am pregnant.