YA - Coming of age story about a boy who lives on a farm and he goes on a journey.

[Sacha]

It is in a different world/not modern time

I think the journey might be a traditional thing all boys his age have to do?

In one part he finds a girl in labour and helps her give birth? And then I think they fall in love and he lives with her

[Capn]

Some lists to browse, if you'd like!

Childbirth in Fiction
https://www.goodreads.com/list/show/1...

Farm and Ranch Life MG/YA
https://www.goodreads.com/list/show/1...

...but based on your description, I'm wondering if a Romance list might not be more fitting?

YA Country Teen Romance
https://www.goodreads.com/list/show/8...

(and there are a gazillion Romance + Ranch / Cowboy / Farm / Country options, if it isn't YA...!): https://www.goodreads.com/list/tag?ut...