... back on March 3,2014. I spotted through out the three months and spotted after March 3. It seemed I actually bled for a couple days starting March 13, which I thought was my first period since not going back for a second dose. But as of yesterday , April 25,2014 I had not started bleeding again. I had unprotected sex yesterday and he did not pull out. Then today I'm bleeding as if my period started. Could I still end up pregnant ?