第一、改善饮食：
需要保证一日三餐的均衡饮食，以提供对人体健康十分重要的维生素和矿物质。其中，两种对健康有益的营养物质就是钙和叶酸，产前服用多种维生素能够保证以上两种物质的摄取。此外，要减少对咖啡因的摄入，因为有研究人称，咖啡因与不育有关，能够降低妇女怀孕的机会。
第二、健康体重：
在尝试怀孕以前，达到与你身高相适应的体重。研究表明，体重过轻的妇女倾向产下低体重的婴儿。
第三、锻炼：
在怀孕以前至少三个月要获得一个良好的体型，并在怀孕期间维持积极地生活模式，有氧运动可以改善情绪和能量水平。
第四、戒酒戒烟戒毒：
大量研究表明，烟酒毒与低体重新生儿、流产、生后行为能力障碍有关，因此，在准备怀孕以前，最好戒掉。
本篇文章译自国外 转载请注明出处
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.
