PLEASE HELP!

Hello! • Future Nurse - Currently going to a Tech school for nursing ❤️- Proud momma of three sweet guinea pigs ❤️

So I’m on my period, I have been for the last 6 days or so and my flow was light up until around an hour ago.

I typically have sex on my period often and have multiple times this time but today when I did I began bleeding much worse, had more blood clots, and started cramping really bad. Sex itself was pretty painful.

The weirdest part is that I thought my period was ending before I had sex because I wasn’t bleeding bad at all and it looked like just spotting.

Now my body feels extremely weak and I’m cramping worse than I have this whole week.

What is causing this? Should I be worried??