This is exactly how, after years of identifying as intergender, bigender or agender, I realised there was no gender ambiguity in me, no man, that I was just a woman.
I was invited, practically coerced to take training to be a Doula. It was a very intense, six months program. Everybody knew I was intergender, and all the women there accepted me as one more of them. This brought me so close to maternity that it awoke something in me, my maternal instinct. I knew it wasn't a father child relationship that I cherished, it was mother child... Finally, after having disregarded the notion of gender as a social construct I was there, "picking a side".
Now I know someday I'll be a mom, even if not in the usual way.
But... they've done a few uterus transplants in Sweden. To ciswomen only, so far, but who knows, maybe they'll start doing it for us while I'm still young enough. And I'm moving there next year, so if they're looking for a test subject I'm in!