What would you do?

We have a 5 week old baby and I feel so bad because I'm isolating in a bedroom because I got body aches and a low grade fever and my husband has to do everything. He works a lot and has important week ahead of him but I just don't want to get baby sick and he's frustrated he has to care for baby at night and day this weekend and our 3 year old. Normally he does a lot for this family outside the home and I feel soooo bad this is the second night I just don't want to help because if my newborn catches anything I'll be devastated