Fishy period smell?

I’m on my period and the blood legit smells like fish. It smells disgusting. I also have a rash going on down there for the past few days, is that normal? My clitoris was also hurting like crazy. It was like swollen and sensitive at the start of my period. I did have sex about two weeks ago because we’re trying to have a baby. Sometimes I do tear because he’s really big and he’ll force it in, because yes, I’m not wet enough because honestly, between us girls, I don’t really be in the mood. I just feel like there’s something really wrong

- Wanted to clarify that I don’t be in the mood because since we are ttc, I’m nervous the whole time and I don’t allow myself to enjoy it due to the stress I put on myself. He doesn’t guilt trip me into sex or anything like that.