Menstruation is an illness. So leave menstruating women alone and don't have sex with them until they have been cleaned and purified.

They question thee (O Muhammad) concerning menstruation. Say: It is an illness, so let women alone at such times and go not in unto them till they are cleansed. And when they have purified themselves, then go in unto them as Allah hath enjoined upon you. 2:222

The Bible and the Quran agree: Stay away from menstruating women