Heather I thought the same thing too when I got mine since I assumed I'd get it on my due date.
What is it that you don't understand?
What's the arrival button?
It's for once your baby actually arrives you get to press it and enter your info about the baby's birth....
You get it once you hit 36 weeks. Once you go into labor now they won't try to stop it. Baby can come anytime.
I think it's bc if u go into labor at this point they won't hold u back or try to stop it. I had a fall this week so went in for some prolonged monitoring and doc said exactly that. That if u into labor now, they just let baby come
I think you get your arrive button from week 36...Since you are "full term" and can go on labor at any time.