After taking folic acid for six months and not getting pregnant have to continue to take oral folic acid until 3 months before pregnancy. It is recommended to supplement folic acid 0.4~0.8mg per day for 3 months before pregnancy, or multivitamins containing folic acid. For women who have previously given birth to a woman with neural tube defects, it is necessary to increase the daily supplement to 4mg of folic acid, such as oral simple folic acid, can be taken up to the third month of pregnancy, such as oral multivitamins can be taken up to the labor and delivery or even breastfeeding period. With regular sex, 60% of couples are able to conceive a baby within 6 months, and 80% to 90% of couples are able to conceive a baby within 1 year, so there is no telling which month the baby will come, stick to oral folic acid, and always be prepared for the baby’s arrival.