ugh can I still get pregnant !!!

Ivveee
Okay I had unprotected sex and felt weird asf . My dad said I was getting big . My Orrin took forever to come but it finally came lol thank god ! My dad asked me if I was pregnant and if I was having sex I said no 😐. I told him that I couldn't be pregnant because I gotten me period . He then said I could still be pregnant even if I got my period . Is that true ?