I took plan b after a condom failure about 12 hours later. It's been about a week now and i'm bleeding now not brown discharge but like my period. So is this considered my period? I got birth control But they are the Sunday pill so i have to wait until my period to come so would i be able to start taking the birth control Even if plan b is in my system. And how long does it take for the birth control to work and be able to have sex?