Okay so my period is typically pretty irregular, sometimes it'll skip a month, or it just comes very late (usually more than 10 days). So I got a period in August, skipped September, and my last one started on October 4th. Between then and now I had only protected sex, up until 2 days ago. 2 days ago I had unprotected sex and my boyfriend accidentally finished inside of me. My question then is, if I haven't gotten my November period but had unprotected sex, can I be pregnant?

Sure. You can get pregnant any time you have sex. No birth control method is 100% effective, so the chance of pregnancy is always there. If you miss your next period, take a home pregnancy test and/or see your doctor. Good luck!