Hello dear I understand your concern Mcmb contain vitamin and folic acid It is usually given as a vitamin supplement and can be used to support early pregnancy. It helps in the formation of DNA and in the production of red blood cells. It plays a major role in avoiding birth abnormalities and helps in proper development and functioning of the brain. So you can use when you want to become pregnant. You can also become pregnant while using mcbm tablet Avoid stress, take healthy diet, drink plenty of water, maintain proper pelvic hygiene, do sex daily in fertile phase of period Hope this may help you Contact further if follow up needed Best regards Dr. Sagar