Advice please... 😣

Hello Ladies, so basically I need help I am 18 and recently spent the night and a boy (friend) house and had sex 5 times (not bragging this is serious) anyway he came in me 3 times 🤦🏽‍♀️ I really fucked up.... Okay so last time he cummed in me i did not get pregnant and he has told me that he cannot get a girl pregnant anyway this scares me because.... regardless I don't know if that is facts anyways that was three nights ago and I have been bleeding heavily and lightly depends... I thought this was my peroid coming early because 6 days later I was suppose to get it but... now I am not sure.... i Google but it just freaks me out... I'm not ready to be a mom any advice and yes I am STUPID I KNOW. Please no comments saying I'm dumb because trust me I know. the consequences are on me but I just need help that's all....