Here too toss in my two cents and address a few of your problems.

Something important to note about GD is that there really is no "typical case". On top of that, your partner maintaining feminine traits isn't odd at all considering they prefer a male identity. Gender presentation and gender identity are two different things. Also, I have cis male friends who like cute or "girly" things. A person doesn't need to renounce all that os feminine in order to present as male.

And many trans men want to have children. You don't hear about it a lot, but it's pretty normal.

Where your problem seems to lie is in seeing your partner as they're prefered gender rather than their assigned gender. You still see them as a cis woman and not a trans man.

There's not really any advice we can give. This is something you need to sit and discuss with your partner. Be open aboit your feelings and tell them of your uncertainty. Don't try and challenge their gender. Just talk about your feelings on them coming out to you and what it means for your future together, if there is one.

If you cant picture a romantic relationship with them in the future, the. perhaps you'd do better as friends.

Communication is everything. Open up to them, talk, and listen to them as well. Hopefully everythig works out positively friend