Why does Steve/Amanda die from child birthing complications?

Question

In "Switch" (1991), the main character Steve, who finds himself in Ellen Barkin's body after being murdered and given a second chance, is impregnated after a night of drinking. While in a mental facility after being framed for his own death, she is expected to give birth because she doesn't want to give the baby up.

She dies giving birth. Was there any specific medical reason for her death after child birth? what specific reason does she die?

Answer 1

The doctor during her pregnancy consultation tells her that there are complications, and if she carries the baby until full term, she could die¹.

The death is implied to have needed to happen, as Steve (main character) was given a second chance at life after being killed the first time. By giving birth to a life is redemption for his mostly womanizing habits, earning his/her spot in heaven.

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¹_{LA Times May 1991}