Just FYI, mothers still face discrimination and disrespect, too. It’s not like sexism disappears when a woman has a child.
I'd hazard a guess (though obviously I have no direct experience thereof) that it gets worse when you have a child. I could not believe the sheer gall of male coworkers "advising" pregnant and newly-mothering colleagues on how to live their lives when i was quiet enough to tolerate that shit in my presence.