From someone who just had to deal with my family (including both my parents, who haven't spoken to each other in 10 years) and my ILs visiting to see the new baby, I would tell everyone a different EDD. And I wouldn't be letting anyone come and stay tbh.

DH and I are lucky that our house is too small to have visitors stay overnight. But my ILs stayed in a hotel and came to visit every day for three days from early morning to late evening and it was hell. They didn't bother helping around the house either.

My Mum has been hanging around for about a month now and was pretty peeved when I hadn't gone into labour by the time of my EDD. She phoned me every day, to find out if I was in any pain and in the end DH and I pulled out the phone and ignored everyone for a week until he was born at 41weeks.

There is a real reason why it's called a Babymoon. That time is really important for you, your partner and the baby to get to know each other, deal with the crazy hormones, establish breastfeeding, heal from the birth, and rest. If family is visiting, they need to stick to your boundaries and help you out. If they don't like the boundaries you set up, that's their baggage and shouldn't be your concern.

Good luck. I wish I'd told my family a different EDD.