Yes you have a very good chance that you might be pregnant if you had unprotected sex. Many women have periods while they are pregnant some are nore periods and some are a lot like yours. The best time to get pregnant is right before ad right after your period, so i would see your doctor to see if you are pregnant. Or just take an at home pregnancy test because if you wait a whole month for your next period you will lose your mind wondering.
Good luck

