Okay so I had sex with this guy 2 times both times condoms were used 1st time was around the end of May or begging of June. And I got my period and it lasted for 5 days ended around June 20's I'm very irregular on my periods sometimes I skip a month, or get my periods at random times of the month anyways,then I had sex with him again June 25th Always with protection. So then on July 1st 2016 I had sex with my ex boyfriend (unprotected) and again a week later (unprotected) I found out I was pregnant around July 30th . Me and my ex boyfriend have been having unprotected sex for about 3 years and I never became pregnant so that's why I'm kind of doubtful about it since I never became pregnant and all of a sudden I did?