Ok so me and my boyfriend had sex for our first time. He used a condom but it broke and we didnt realize for a bit. I took plan b about 30 minutes later. i heard the faster you take it the more it'll work. Well i started getting plan b side effects and then i got what i thought was my period but i wasn't sure because i heard plan b messes up your cycle. It lasted about 3 days and the second day was pretty heavy. And just recently my nipples started hurting but just my nipples, not boobs. So does it sound like i could be pregnant? Please Help :/ And when i had my so called period i had blood clots. was that a miscarriage?