75 ppl coming for shower!

Jac • 1st pregnancy, two years of trying with fertility drugs. Took a break off the drugs and got our BFP!
Our backyard BBQ baby shower is on Sunday and we've had 75 people RSVP! I'm a little stressed and caught a cold this week but I'm super excited, I can't believe that many people are coming! 
Any tips for dealing with such a big day? I'll be 32 weeks Sunday!