I'm 17 and have been on Yaz for about 5 months and have recently become sexually active about 2 months ago. Me and my boyfriend have had sex 4 times now and i havnt bled until the fourth time which was about a week ago and since then i have been bleeding constantly. The bleeding started right after we had sex, not during and for the first day it was a little heavy and pink, but now the bleeding is pinkish/brown and is pretty light. The sex didnt hurt and we used lubricated condoms which didnt break or rip. We havnt been with anybody else except for eachother. I dont know what the bleeding could be and it doesnt seem to be subsiding. Any thoughs?