Hi, I had sex a week ago, but our protection (condom) broke. I was on the 24th day of my cycle and expected to get period on 30 or 31st July. I thought there is very little chance I could get pregnant, but my period has not started yet and although my cycles are usually regular (28days) I had some issues couple of months ago when my period was late over 3 weeks. I did couple of tests then and they came negative, I then got my period. What are the chances I could be pregnant now and what is the earliest I could find out? Please advise