NERVOUS!

Still have a couple weeks left before my baby girl is actually here and everything is going good besides the fact of being a carrier or cystic fibrosis I'm trying to be as positive as I can I pray she's born healthy. 18 & her dad bailed once he found out, he's a loser anyways (4w3d left!) as a first time mom I'm super nervous to give birth.. what are contractions like?? Will it hurt?? Who should be in the room? (I have 4sisters0brothers and 1bestfriend and she's really excited for me 😂