Listen to the words they are saying without thinking what it would mean if a woman were saying it. Women who say they want to get pregnant mean they want to raise children. These men say they want to have periods, to be pregnant, to breastfeed, and to be called mothers, but at no time do they say they want to have children. There is no talk of yearning to raise kids or form a bond with them. It is only about the biology of being a woman that they crave, not the lifelong consequences of actually birthing children. They can already have their own genetic offspring because they are male sexed beings, but they don't want them.