<s>[INST] irregular period we want child. our doctor had given fertyl tablet.please answer me. [/INST] HiGREETINGS First of all we have to rule out the causes for irregular periods.Hormonal analysis esply thyroid ,prolactin along with an ultrasound scan to rule out PCOD will be initially useful in finding out the reasons for irregular periods.Once the cause is detected it can be treated or controlled with medicines and fertility can be assisted.So. Hope my answer helps you. Regards </s>