>>40264841A lot of women cope with pregnancy by mythologizing it, something changes in their brain so they're forced to fixate on it. For those where this mechanism is faulty, you see them reject their children, and post-partum depression. It's necessary because in order for that life form to survive to term it needs to drain the mother of necessary energy and material. Genetically, the mother and father side are also in competition, and if the father's side wins out then the baby drains more resources and grows larger, stronger, and more intelligent. If the mother's side wins out then the child is smaller and weaker, but the mother is more preserved.
You can understand why these coping mechanisms develop.