Low cervix and sex

I have always had a low cervix since I can remember.. since having my son 2 years ago my cervix has become alot more sensitive i can only do missionary... if my partner hits my cervix i end up in a lot of pain and will have cramps for a few days after... I don't know what to do.. because of this our sex life is not as good as it once was we used to have sex everyday sometime multiple times now we have sex maybe 1-2 times a week

I miss the intamacy and the closeness we had once shared together