I'm just not sure if I should specifically say to him that just the kids and I are going and if he would like he can do something separately with them later?
I think you just get the kids ready and not say anything. If he's interested, he should ask. You have to be prepared for him not to so as to not ruin your time with your kids. Let him deal with the consequences of not being present. Your kids might ask where H is or why he's not going, so just be prepared for that.
It can't be said enough on your thread that you're an incredible W, woman and mother, TO. I hope you get all the time you need and baby comes exactly when you want it. It's the least that can happen, right? :-)
Happy, Happy Easter to you and your munchkins.
Me 42, Wife 39; Married 16; Together 17; Kids: D13, S10 Wife asks for Divorce: 03/19/13 Reconcile: 07/07/13 Round 2 Starts: 02/19/17 Apartment Life: 04/21/17 PA Confirmed: 05/23/17