My wife and I had unprotected sex on 3rd march and she has taken I pill on 4th march morning and get periods on 7th march then we had unprotected sex on 13th march and she had I pill on 14th march morning and she got periods on 17th march now it?s 22 april but she haven?t got her periods last was on 17th march as I said before. Is she pregnant or the delay is because of the pills and when did she can get her periods again.