I can't say much about the non binary experience except I know there are some more femme leaning non-binary people who mightve been assigned male at birth and got vaginoplasty - even asexual ones (you can just get "zero depth" instead of getting a proper neo vaginal canal). I wouldn't say it's an egg thing but if you wanna explore the more binary woman side feel totally free! If it makes you happier that'll give you something to think about, but you're allowed to be femme nonbinary ("even if I'm a femme, I'm still a them" - can't remember where I heard that but maybe it resonates with you?)