Salam,
Parwez has provided the following in his exposition of the Quran;
2: 228 Divorced women should not remarry until they have completed three menstrual cycles. (Those who do not menstruate due to old age or some physical disorder should also wait for three months (65/4) and those whose marriage has not been consummated have no waiting period, (33/49).) If a woman is pregnant she must make this fact known. (The waiting period for a pregnant woman is until the delivery, (65/4).)
If the dissolution of marriage was initiated by the husband and he wishes, of course with the consent of his wife, to resume the marital relationship, he may do so even within the waiting period.
There is no waiting period for the husband – this is the only advantage he has over the wife who has to wait for three months before remarriage (the rationale for this is obvious). Excepting this, the rights and responsibilities of men and women are the same in all spheres of life. These Laws have been prescribed by Allah whose power blends with reason and wisdom.