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Presence of irregular period suggests hormonal dysfunction leading to absence of ovulation which needs to be evaluated . You need to undergo tests like FSH,LH,Testosterone
,Prolactin,TSH,blood sugar and pelvic ultrasound apart from gynecological examination to reach at the diagnosis. Polycystic ovary syndrome
(PCOS) is common cause of irregular periods
in asian population. Thyroid and prolactin disorders need to be corrected. You may require ovulation induction
drugs like clomiphene
to induce ovulation and follicular monitoring ( by ultrasound ) to look for growth of egg and ovulation. Plz post semen report of your husband for appropriate diagnosis and management advice. Wish u all the best.