Q: Is there a limit to having sex? Is it permissible to have sex every night? Can I refuse my husband?
A: Explain to him that this is not a healthy thing for either of you. Twice a week is sufficient. It will do better for both, for you need the energy to be able to cope with the other chores and duties of the home.
And Allah Ta’ala (الله تعالى) knows best.