Prolonged period? Is this normal!?

Madyson

So I usually have a period that lasts about 7 days. I was on day 7 no bleeding, just some light stuff but not enough for a pad. I had sex with my boyfriend and now a few hours later I’m like completely on my period again and it’s day 8? Could this be from the sex just kind of moving things around down there or should I be worried about a bleeding disorder (I’m going through some testing)