So this doesn't make sense in any light. If they believe that everything is God's will, then they're killing a woman for being God's little pawn. If you discount the religious aspect, then you have to consider that,
A) The woman has no control of the gender of the baby she's going to give birth to.
B) If we want to assign blame, we should do it to the man. Why? His sperm hold the chromosomes that determine gender!
tl;dr: This place is a retarded fuckhole.