Can I get pregnant? Please comment

I had sex with my boyfriend tonight and he came inside of me. My period is definitely starting tomorrow, all the normal symptoms I get right before starting my period have been happening and Glow calendar also says tomorrow is the day. I know it's highly unlikely to get pregnant on your period especially if you have a longer one because the sperm can't live inside you long enough to make it til you ovulate.

My question is: is it any more likely that I can get pregnant from having sex the day before my period?