I'm 18 and have been on birth control since November 2012 but recently came off it around the 20th of march. I've just noticed I've had really sore nipples and they get hard instantly when I touch them, and they usually don't get hard that easily. I did have unprotected sex on the 2nd of April but he didn't cum in me. Do you think it's just a symptom of coming off the pill or is there a possibility I'm pregnant (he could of leaked in me) its too early to take a home pregnancy test too be sure so if anyone knows what this could be your help would be very much useful!!! Thankyou