Method 1: Choose the right childbearing age. Most medical experts believe that the best childbearing age for women is 25 to 29 years old. Women in this age group are more likely to give birth naturally. Risk factors for pregnancy and childbirth increase with age. First of all, if you are too old, the joints of the birth canal, perineum, and pelvis will become hard and difficult to expand, and the contraction force of the uterus will be reduced.