Husband giving his wife an injection to prevent menstruation

Q 1: A married girl was given an injection by her husband to prevent menstruation, and for a whole year she did not menstruate. Now that her husband divorced her and I want to marry her, but she has not menstruated until now. How long is her `Iddah (woman's prescribed waiting period after divorce or widowhood)?

(Part No. 20; Page No. 429) A: The `Iddah for this girl is one year starting after Talaq (divorce) unless she begins to menstruate before the year is over. In this case she must wait until her `Iddah ends according to the end of her menstrual periods. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.