Painful sex after period

Hollie • 19 • feminist • college student
Anyone else not have great feeling sex when you get off your period?
Ever since I became sexually active, when I'd get off my period, the sex wouldn't feel as good for a couple days. Sometimes it's PAINFUL once he's inside me and when he's trusting. 
I think it has had to do with not becoming wet enough, but I'm not sure. 
This happen to anyone else?