A Muslim woman cannot be divorced during pregnancy. If a husband pronounces divorce to his wife during pregnancy, it is immaterial till delivery. However, if after delivery of child, it is not reconciled within 90 days, it becomes divorce.
The reason is that the Iddah of a Muslim woman is 90 days after pronouncement of divorce by the husband. If divorce is pronounced to a Muslim wife during pregnancy, it becomes effective automatically after the end of pregnancy. The iddat of such lady starts from that day and if the divorce is not revoked in such time period of 90 days, then it becomes complete divorce.
Once a women completes her Iddat after divorce, it means the divorce is final and irrevocable between parties.
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