Hello dear I understand your concern Primolut N contain progesterone and it same hormone present inside body. It does not affect pregnancy and future chance of pregnancy. Inspite it support early pregnancy and promote growth of fetus. In absence of pregnancy, primout will help to induce period. Take it according to advise of your gynecologist. If you have normal period, adequate maturation and rupture of follicle, patent fallopian tube, normal semen parameter then you become pregnant. You can start ovacare plus, progesterone tablet in secod half of period tom become pregnant. Avoid stress, take healthy diet, drink plenty of water, do regular exercise and maintain weight according BMI Hope this may help you Contact further if follow up needed Best regards Dr. Sagar