Hello, thanks for using health care magic If i did get you well, you mean to say your wife had menstrual problems and was put on treatment which cleared the menstrual problem. If that is the case, it is likely that your wife might have some hormonal issues. Hormones control menstrual cycle and when the hormones are not well balance, irregularities in menstruation occur. Another possibility is less frequent intercourse. Ideally, you should have at least 4 days of intercourse (the days not consecutive) a week to increase the chances of having sex during your wife s fertile period. Other possibilities do exist, so it will be better to meet a fertility doctor for detail investigations. Best regards Dr Achuo