Implantation bleeding or aunt flow?

So, my boyfriend and I had sex the 29th and the 1st, my period came when expected which was Thursday the 5th. My period usually lasts 6 days, I cramped pretty bad as I usually do and took medicine before it got any worse. The cramps had me curled up in a ball so yeah, i was bleeding pretty heavy the first 3 days and it was bright red/dark red with blood clots. Like, I bled through a super tampon in 2-4 hours and I had to wear super tampons throughout the first 3 days as I usually do. I wear tampons and tomorrow is the 5th day of my period, my period has basically stopped, I had my tampon in for like two hours, and there was just a spot, that’s it. One night I had to wear a pad cause I ran out of tamping and the pad was DRENCHED, but that was overnight. Should I be concerned or is it just the anxiety getting the best of me? We used condoms, there were no holes that we know of, and he even pulled out when he was about to cum, I know I sound stupid and uneducated about sex, but it’s literally just my anxiety because it’s so bad.