The Cow - 2:228 The divorced women should wait three months for themselves (before marrying another). It is not fitting for them to conceal what Allah has created in their wombs if they believe in Allah and the Last Day. In that case (if they become pregnant) their husbands have more right to take them back if they wish to reconcile. Women have equal rights over men as men have rights over women, and men have a rank over them (in case of pregnancy). Allah is Mighty, Wise.
The waiting periods when you divorce women:
The Cow/2:228 The divorced women should wait three months for themselves (before marrying another). It is not fitting for them to conceal what Allah has created in their wombs if they believe in Allah and the Last Day. In that case (if they become pregnant) their husbands have more right to take them back if they wish to reconcile. Women have equal rights over men as men have rights over women, and men have a rank over them (in case of pregnancy). Allah is Mighty, Wise.
The Cow/2:231 When you divorce women, when they have finished their waiting period, either keep them with you in kindness or let them go in kindness. Do not keep them in such a way as to harm them in revenge. He who does that is wronging himself. Do not take the signs of Allah lightly. Think of Allah´s favors which He has bestowed upon you and of the Book and the wisdom which He has sent down to you for your admonition. Listen to Allah and know that Allah is All-Knowing.

Divorce/65:4 As for your women who have gone through menopause and have stopped menstruating, if you are in doubt, their waiting period is three months. And those who do not menstruate and are pregnant, their period ends when they give up their burdens. Whoever listens to Allah, He will make it easy for him.