Okay so me and my boyfriend had unprotected sex for the first time April 15th and he didn't cum in me but I was scared so I took the plan B and I did not bleed and got my period for April and May. I got my period for May the 23 and it ended the 29th and we had sex the 30th but the condom broke and he came but I heard the pill wasn't that effective if you take it again but I figured it was better then nothing at all. So I took it the 31st and it is now June 6th and I went to the bathroom and I wiped and i was bleeding and now I am cramping. It's not brown or black it's red like if I had a period. Should I be worried? Could I be pregnant? Is it implantion bleeding?