How do i decide - who to invite

I wouldn’t invite the fathers, unless you have a friendship or relationship with them!

I guess it depends on your relationship. If you all get along, then why not? If it's awkward, then I'd leave them out just to have a stress-free day!!

Thank you for your help i think you are right i am already going to be dealing with my FH's ex wife cause she has their three kids. so i am not sure i want to deal with either of mine at all

I have 2 children with separate father's as well. I personally wouldn't invite thier father's due to our relationship. I'd be so worried theyd do something to cause issues. I'd ask my family/friends to be with the kids for the day and maybe drop them to thier dad's or have them sleep over. It's our day im sure family will ensure we enjoy it!!