Had sex in December 2 days before and the day I ovulated. My period was due January 3rd but it didn't come. I had sex again January 9th and then on the 10th started having cramps and bleeding. The cramps went away but the bleeding continued on the 11th and stopped today(12th). I've been vomiting and having pregnancy symptoms for about 2 and a half weeks and I still am. I took a test last Thursday and there was a faint line but when I tested again the next day it was negative.