Yes, a person can have PCOD even if they have regular periods. This is because PCOD is not necessarily determined by the frequency of one's periods. Rather, it is characterized by cysts on the ovaries, which can cause irregularity in a person's menstrual cycle. However, not all women with PCOD will have regular periods. Some may experience infrequent or irregular periods, while others may stop having them altogether. PCOD can cause several other symptoms, such as weight gain, fatigue, and fertility issues. If you think you might have PCOD, you must see a doctor for diagnosis and treatment.