Call your OB asap and ask. She really needs to monitor both you and the baby, make sure everyone is okay.
You need to stay away from him completely. Either you or him need to stay somewhere else. I had a similar issue when a client if mine had the measles. My doc told me to cease all contact until they had a note from the doc saying they were clear of all infection and were no longer contagious. I know it will be difficult, but you really need to stay 100% away from your husband because measles is very contagious.