I have had intercourse with my wife on May 7 th and though we used barrier contraception we were not sure about it. So she took an I pill on 9 th and her period began just in time on the 15th. The cycle was a bit longer than the usual and she felt some dizziness. The next menstrual cycle should have begun by 15th june but it didnt. More over we have had intimate relations again on 20th and like before we are not sure about the contraception that we have used. So now we are very much worried. M