Straining the relationship

I am 24 weeks rn . 2 weeks ago the hubby and i had amazing sex.

After we both went to sleep and then i woke up at 3 am having sharp abdominal cramping lasting for 3 hours. They brought tears to my eyes .

Ever since then i dont want to have sex because its not even worth the pain afterwards . My poor hubby thinks that i dont want him anymore and dont want to touch him . But i just dont want him to touch me.

And i really dont like getting him off without getting any action . This is really putting a strain on us . Whenever he hints or asks i always reject the idea , sometimes nicely and sometimes out of frustration.

I really want to make him happy but i just have no desire of sex . What do i do ? Mind you, before i got pregnant we were having sex a good 4 times a week . But thinking about it doesnt excite me and i dont really even miss it . ( and that says a lot because our sex was the best !! )

Any ladies out there w similar problems ?