1. Quit smoking and alcohol Both smoking and alcohol can reduce and damage the number and vitality of sperm, and it usually takes 3 months for men to produce new sperm. When planning to conceive a baby, you must start to stop smoking and drinking 3-6 months before conception, and at the same time, eat more green leafy vegetables and fruits to compensate for the lack of vitamin C in your body. 2. Eat more vegetables and fruits Many men like to eat meat, but do not like to consume vegetables, which is not good for improving the father’s “pregnancy power”, because sperm When preparing for pregnancy, fathers should eat more meat and at the same time not neglect vegetables, fruits and coarse grains that help to form an alkaline body, so that they can take in high protein, essential trace elements, vitamins and minerals, sufficient energy and other important nutrients to enhance fertility.