Daughter born....2 year old has covid

So I am at the hospital with my 2 day old Daughter and my sister is watching my son who is 2 years old And it turns out her whole household is popping positive for covid And this literally was the 1st time my child has ever been away from me and I have horrible mom guilt because I feel like I put him in danger Even though we did not know that everyone in her house was going to catch covid Now we are trying to figure out How to bring my son home without endangering my daughter Hope that he doesn't start showing symptoms and gets sick