I’m not sure why the birth of her son would stop Leia from being a Jedi. Did she need to be a stay at home senator? I think it may cause more confusion. She needed to have a push to not continue. The death of your child would do that, and it ironically comes true.
But the good part is that in death Ben is brought back home, which is why Leia’s body waited for him. So, the death of her son at the end of her journey has a different meaning. Sounds like a misread prophecy 😉