Partner App?

Jennifer • I've been pregnant 4 times but this is my 1st time parenting. I had a son who was taken from me when I was in foster care and adopted and had 2 miscarriages after that. Now I'm expecting a baby girl!
I tried to click on the link so that I could invite my daughter to be's father to be involved but it won't work. How do I do it so he can be connected?