I've always wanted to have a child of my own.
With that said, with the state of medical technology right now, I don't feel like for me it would be worth it.
It's just too expensive, just too many possible complications, too major of a surgery, too much hassle just to keep your body from rejecting it, and even though it would allow me to carry a child we're still not at the point where I could biologically be the mother of the child, I'd have to use donor eggs, so really it's still basically adoption, albeit "adopting" a child that you give birth to yourself.
We're getting close to technology that will make it possible one day. And if we were in that medical future, where a trans woman can have a womb grown from her own cells, impregnated using her own egg cells converted from stem cells, and in an era where such things have become commonplace and thus reasonably affordable, I would do it in a heartbeat.
But regrettably, for now the reality is that I just don't think for me it would be worth the pain and hassle and expense and overall imperfection of this in-its-infancy technology. And I doubt that it will be advanced enough before I'm too old to benefit from it.