My wife 1st day of last menstrual period was on 10th feb 2017, she has an irregular mentrual cycle. we were in unprotected sex in 26th feb but took emergency contraceptive pill on next day, then again we had sex on 3rd and 7th march with protection. She had some pv bleeding just 1 episode on 26th and on 30th march. We performed 3 urinary preg test on 21th , 25th march and 1st April, all were negetive and she had no sign of early pregnancy. Now my ques is , was the bleeding menstrual? can she be still pregnant??