I'm not pregnant, but when I was, I made everyone get their Tdap and flu shot before they could see the baby. If I were pregnant now, but not due for a few months, (assuming social distancing is over) honestly, I'd make everyone wear a mask. And very limited visits. If there was any potential risk, I wouldn't let them hold the baby. There's just not enough known about it yet, to know how big the risk could be. With a newborn especially, it's just not worth it. Obviously hand washing upon entering your home (but this should be done regardless with a newborn), but especially now. I think it's truly up to you with what timeline you're comfortable with having visitors/who you want to visit. Congratulations!