my period ended 14th Aug.. i had unprotected sex on d 17th and he ejaculated in me twice.. i took a morning after.. went to d doctor to treat a urinary tract infection and was put on antibiotics and vaginal creams.. 2 hours after i took my last 2 tablet i get a lil bleedin after i pee.. but now i am bleeding heavily & thick.. i have cramps, back and abdominal pains, as well as i was dizzy and a slight head ache.. what could dat b??? i am sooo worried..