Difference being that unlike sexual orientation, desire to have children is something that can be affected quite a lot by just situational circumstances. I’m glad to hear that it worked out well for you, but there are plenty of people who have either wanted or not wanted children when young who have ended up changing their minds, to my knowledge there’s never been an instance of anyone changing their sexual orientation.

Properly used condoms are incredibly effective at preventing pregnancies and have the additional advantage of reducing the spread or STDs, there’s no need to take an irreversible decision quite yet.