Help!

My boyfriend and I just had sex, no protection, I got my period the next day. He didn’t cum inside me. My period usually lasts around 5 days, but I haven’t stopped bleeding. Is this a sign? For some reason I feel this is different “blood.” Usually my period blood has clots or something, but this is the 6th day and the blood doesn’t have any clots. Am I just overreacting? Am I pregnant ? Any ideas ?