Generally there is no best time to have a baby, you should choose when you are healthy and you can choose to have intercourse when you are ovulating to increase the chances of getting pregnant. For women should have to choose to have a child before the age of 30, because the older you are, the more risks you face, such as gestational diabetes, gestational hypertension, fetal chromosomal abnormalities and so on. A normal woman can have a child when she is in good health. One needs to visit the hospital for all the pre-pregnancy tests before having a child. The same is true for men, who also need to undergo various tests before having a child to ensure that they are in good health to prepare for pregnancy. Women can choose to have intercourse during the ovulation period, because at this time there will be mature eggs discharged, after intercourse, the possibility of combining the egg and sperm is greater, which will improve the chances of women’s fertilization.