I don't think I should be trusted with raising a dog, much less a child. Like, if my brother had a child and I was closely involved with their family, that could be cool, but no interest in the responsibility myself. Also aro, so there's no starting a family with a SO.
My siblings and I were conceived via IVF (and almost all of my half-siblings were too) and my mom wasn't even the person who birthed us. While its been cool to meet the formerly anonymous donor, we don't see them as family. And birthmom is someone we chose to excise from our lives. Genetics doesn't make a family in case you're concerned about that with adoption.
If your concern with conceiving is the sex part, couldn't you just deliver the sperm artificially?
Not man or woman. Just trans!