Can I be pregnant and on my period?

Well I've put myself in a dangerous situation! Me and my beau had sex!!! We'd always use condoms but this time he didn't and I didn't realize it until it was too late ! But then that same night we went on for two more rounds and I just blew the condom idea out! In all he came in me a total of 3 times that night!! ( I'm the worst ) this hapened on October 26th the day before my birthday! It is 11/11/2014 and my period just arrived 4 days ahead of time! Question is can pregnancy be the reason it arrived early! do I worry and take hpt or just stop stressing and go along and thank God?