I never said that cis women don't deserve this right. If you look my other responses in this thread you'll see that I have expressed that they do multiple times.
I also don't just mean accomodation in terms of words: if trans men have any needs different to cis women, then medical literature on pregancy must include this when in circumstances where it's appropriate.
They might find they have increased problems with gender dysphoria as their body changes during pregnancy. It might cause a number of problems that should be considered/monitored/treated by their doctors.
I'm not familiar with the topic so I don't know, but it seems reasonable that the question at a minimum needs to be asked.
That said, if they've transitioned they (I think) need to stop taking testosterone, which points out that hormone stuff could perhaps be different. There's also the social aspect of a man attending/needing typically women only support.
I also don't just mean accomodation in terms of words: if trans men have any needs different to cis women, then medical literature on pregancy must include this when in circumstances where it's appropriate.