Hello dear I understand your concern I would suggest to consult gynecologist and undergo reproductive and thyroid hormone analysis, USG scan, ovarian follicle study to find cause. If you have normal maturation of follicle, normal hormone analysis, patent fallopian tube and normal semen parameter then pregnancy is possible. To regularize period: You can progesterone pill in second half of period Other specific treatment depend ion cause Do sex daily in fertile phase of your period You can use folvite or ovacare plus to maintain reproductive health Avoid stress, take healthy diet, drink plenty of water, do regular exercise and maintain weight according to normal BMI Hope this may help you Contact further if follow up needed Best regards Dr. Sagar