I had unprotected sex NYE (the day before my period)

I had sex with this incredibly hot dude who I don't know on New Year's eve without a condom. I am on the pill. I don't usually take my pill at the same time every day and I even missed it once during the month of December. I got my period on New Years Day.. Is there a chance I could get pregnant?
He pulled out right before he came..

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