Baby Shower Invites

How long did it take for people to RSVP? I sent out my invitations last week and besides people like immediate family who I know were coming no matter what, and my 2 best friend and their families, we only got 3-4 RSVPs. This is making me nervous that no one is going to come 😭. All those RSVPs were the first day they received the invite too? Anyone else have this problem? Did they RSVP by the deadline? Did you send out a second list? Did they show without RSVPing?