And I'm not going by what the doctor would say I'm just giving my opinion because of experience
I would say 36 weeks. I had my daughter at 34 and her lungs weren't fully developed so she had to stay in intensive care for a week bc she couldn't breath on her own. But I had my son at 36 weeks and he was completely healthy
The new standard in the US is 39 weeks.
About 34 weeks because the lungs are the last to finish developing