ok i had unprotected sex while i waz on birth control two weeks after mii peroid n mii breasts were sore i had cramps, really bad gas n i would, and still am, eat alot. at tha time that i had sex i waz 4 or 5 days late on mii birth control i waz 4 days late for mii peroid but i got it n tha blood is bright red... i dont kno wat to think help me plz