Hi, im 17 me and my boyfriend had a mishap last night-early morning, while having sex the condom broke and we were unaware till he came inside of me a little bit and pulled out the rest, I started birthcontrol about two weeks ago and 30mins-1hour after we went to go get plan b (morning after pill) and I took it then, what and how high are the chances I could get pregnant? Should I worry? Please help! Thanks!