I had an abortion MARCH 27,2013 I had unprotected sex MARCH 28th. According to online resources I would have ovulated APRIL 10th,2013 I had unprotected sex APRIL 6,7,8 and 11,12,13,14, 2013 what are my chance of being pregnant. And when should I check since I don't really know when my period will come nor when I really ovulated...?