If they want to control the birth of babies, I think they might do something about natural Fertilization too. As far as I know, they also removed some features out of women too like menstruation and added something like slow aging, happy thoughts, etc. But as you can see women still can get pregnant by the ceremony (which will be explained later). And yes, at some point, MC will be able to make women pregnant. For now, if you ask me, the only woman who can get pregnant (by the MC) is the one who lives really long.