weird thing

so the 26th was my expected period day. I went to the bathroom closer to 9 at night and wiped and saw a good amount of blood on the toilet paper, it was lighter in color. that happened for the next half an hour. around midnight when I went to the bathroom the same thing happened. today, the 27th, I am still bleeding but it's a super light amount and the same concept. my boyfriend has never cummed inside me without a condom on and we always check them after. am I pregnant or is my period just being weird?