My boyfriend and i had sex while i was on my peroid, the condom broke and he finished inside me. i took plan b an hour later. my peroid ended normal but a week after i took the plan b i am having a brown discharge. is this from the plan b? is this normal?

Probably: Given that you were having your menses at the time that this happened, taking the Plan B should have been redundant. It can cause menstrual irregularity so i would think that it is the cause of your discharge. In the future, make sure you use plenty of lubrication on the outside of the condom or inside yourself.

Plan B: Plan B can cause spotting or bleeding, changes in menstrual flow or your period may be late or early. Brown discharge is usually old blood being cleaned from the uterus. Your symptoms might be related to use of Plan B.