I'm very glad pregnancy in general isn't one of mine, as I can't get pregnant. However, gender and gender norms really really are, so when I connect with mpreg, it tends to be there. Lots of authors, though not you, tend to use mpreg as a way to have their slash and their heteronormative 70s romance novel ending too. And it just sticks in my craw. As I said, I'm writing That Damn Mpreg, at the moment, and also arranging my sterilization surgery (I can conceive, but I can't carry, as I'm allergic to my own progesterone, and it would kill me within a month, according to my doc) so pregnancy is on my mind, as is reproductive emotions. I found myself surprised at how unhappy I was about having the surgery, that I had know I would need since I was really little, and it reminded me how much of our ideas of womanhood revolve around motherhood. My misery wasn't about not being able to have a kid, but about not being normal, and having my body not fit. Right around then, I started writing about a pregnant trans man. Coincidence? I think not.

As for fetishism, I have my best friend the trans man egging me on to write, which soothes my cis guilt some. (he's just so happy to see something written by a cis person about a trans character that isn't about the transition or specifically about being a trans person, and he's my best friend, so I don't know if his approval speaks to quality or not). Your mpreg is less disgustingly heteronormative than most portrayals, which puts you ahead, right?