Pregnancy scare

A couple of weeks ago I got too horny and I let my boyfriend go too far. First it was just me giving him a blow job then I got to into him fighting me, so He wanted me to "feel" how his dick inside me. He took my virginity by breaking my hymen and that was it. Now it's been awhile and my period hasn't came yet. I'm afraid I might be pregnant, but  since there was sooooo much blood after my hymen broke I feel like breaking my hymen was my period since there was so much blood.