Hibernate or life as usual?

Ana
I just had my second baby, my husband does not have paternity leave (he's not allowed to take it yet) and sometimes I literally have to leave the house to buy groceries and sometimes I have to leave the house for my own sanity! I've had people tell me though I should not take the newborn out of my house for a few months, but how do you do it? How can you live life like that? I worry every time though. I just let my five year old niece hold my 5 week old yesterday and today she is sick, now I'm so worried I put him in danger. When is okay to go out in public again?