HELP!!!! ADOPTION OF A NEWBORN

Hello,

I have been ttc for about 4 years now. I have had no luck and it has been a strrssfull, heartache situation for both my husband and I. Two days ago I randomly received a message from a long away family member i havent seen in years. She has alot on her plate and is sure she cannot take in another child. She just found out this past Sunday. I was asked if I would be interested in adopting the child she is carrying. I was left without words. I'm scared, nervous, anxious, happy. Their is so many emotions and i feel like this is a dream. Both my husband and I sat with her and she nd her husband are 100% sure they want to go through this route. We are both filled with joy that our prayera have been finally been awnseres. I truly believe that God has the doing in this. I told my husband that we are ment to be the parents of this child. However, we are scared. Scares that she will nkt followthrough at the end. I knkw knve baby is born their is alot of emotions. We just don't wanna be heartbroken. Any Advice????/????????