What ways are there that increase fertility in men and increase chances of pregnancy in women??

Healthy lifestyle : The avoidance of cigarette smoke is important since it lowers sperm counts and increases the risk of miscarriage.Avoid hot tubs since heat interferes with sperm and anything that raises the temperature of the testicles decreases the sperm count.A healthy diet and moderate exercise are important for both partners.Supplemental folic acid prior to pregnancy for mom decreases the risk of birth defects