第一、改善飲食：
需要保證一日三餐的均衡飲食，以提供對人體健康十分重要的維生素和礦物質。其中，兩種對健康有益的營養物質就是鈣和葉酸，產前服用多種維生素能夠保證以上兩種物質的攝取。此外，要減少對咖啡因的攝入，因爲有研究人稱，咖啡因與不育有關，能夠降低婦女懷孕的機會。
第二、健康體重：
在嘗試懷孕以前，達到與你身高相適應的體重。研究表明，體重過輕的婦女傾向產下低體重的嬰兒。
第三、鍛鍊：
在懷孕以前至少三個月要獲得一個良好的體型，並在懷孕期間維持積極地生活模式，有氧運動可以改善情緒和能量水平。
第四、戒酒戒菸戒毒：
大量研究表明，菸酒毒與低體重新生兒、流產、生後行爲能力障礙有關，因此，在準備懷孕以前，最好戒掉。
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1、 Improve your diet
You need a balanced diet of at least three meals a day, with foods from all four food groups to provide the vitamins and minerals essential to good health. Two of the most important nutrients for a healthy pregnancy are calcium and folic acid. A good prenatal/multiple vitamin will ensure that you get enough of both. Cut back on caffeine consumption. Researchers say caffeine delays conception or relates to infertility, but it does appear to lower a woman's chances of conceiving. (Note: Caffeine may help (in some men) by stimulating sperm motility.)
2、Healthy weight
Get down to your ideal weight for your height before attempting to conceive. Studies have shown that underweight mothers tend to have low birth weight babies. So make sure not to go below.
3、Exercise
Getting in shape at least three months before you conceive (ideally 3 to 12 months) makes it easier to maintain an active lifestyle during pregnancy, and helps during labour. Aerobic exercise can improve your mood and energy level and helps you achieve a healthy pre-pregnancy weight. You'll also be less vulnerable to the hormonal swings.
Pre-pregnancy exercises for getting in shape include walking, jogging, running, swimming, and aerobics. (Note: Start slowly and don't overwork your body. You should always consult your doctor before starting any new exercise program).
4、No alcohol, recreational drugs, smoking
Study after study has shown that smoking, drinking, and taking drugs are connected to low birth weight babies, miscarriage, SIDS, and behavioural problems later in life. Stopping before trying to get pregnant is best.
