Hello, me and my boyfriend had unprotected sex the day after my period. He didn't ejaculate in me but put it back in after he did and he was positive he still had semen when he did. So the next night I took a plan b and a week later I started a light pink/brown bleeding. As the the next 2 days went by it got bright red then back to pinkish /brown. This has been going on about 4/5 days now. Anything could help.