If you can explain to me how a man can be pregnant then maybe I'll change my mind but it seems rather unscientific to me. And this is talking about biological sex not gender.

Maybe do better with your argumentation instead of just calling somebody a bigot because you disagree.

To be more clear the vast majority of people do not want to change their language for vanishingly small minority. FTM is an even smaller minority than MTF and that's what's required in order for a "pregnant man".