It's a neanderthal idea that women get pregnant? Funny... Did you get your biology education in the bible belt?
Neanderthals are deemed to have been gentle and intelligent, btw, their reputation as brutes was misguided.
Men did not invent pregnancy. If you want businesses to hire women, it seems fair that you should compensate them for the added risk.
Suppose you have two equally qualified candidates, one male, one female. If an employee quits, it costs you months of productivity and thousands of dollars to recruit a new candidate. Obviously the male candidate is economically more viable because he is less likely to drop out because of children.
If you don't acknowledge that issue, you will never be able to help women (if they need help, which is not a given). I think the state should pay businesses for the loss, or perhaps even reward businesses if their employees become pregnant, if society wants more women to be hired.
Feminist stance is of course that men should be equally like to drop out and take on the "burden" of raising kids (that is what feminists think of family life - the only explanation why women put up with children is because the patriarchy forces them to do it). The reality is that being allowed to spend time with their kids is actually a privilege, not a burden. Women drop out to enjoy the time with their kids. They also tend to choose professions that don't allow them to provide for a family long before they even have kids.
Otherwise, why wouldn't they just continue to work and use their salary to pay a nanny?