The first thing you need to do is to get a good deal of information about the company’s products and services, and the company’s products and services will be available to you. If you are not pregnant and your husband has been smoking for a long time, if you are pregnant, you need to closely observe the development of the fetus, if the examination is normal, the fetus can be taken, if the examination results show that the development is abnormal or spontaneous abortion and other phenomena, you need to terminate the pregnancy in a timely manner. During pregnancy, you need to do NT test from 11 weeks to 14 weeks under the doctor’s advice, Down’s syndrome screening from 15 weeks to 21 weeks, and 4D ultrasound from 22 weeks to 28 weeks. At the same time, you need to pay attention to rest, eat a light diet, keep a happy mood, and take appropriate calcium, iron vitamins and folic acid supplements. From the eugenics point of view, it is recommended to ban smoking in the first trimester of pregnancy, which is conducive to improving the quality of the embryo and reducing the possibility of fetal malformations, and if the pregnancy is planned, both husband and wife should abstain from smoking and alcohol, and also should not smoke during pregnancy, and the pregnant woman should not inhale the second-hand smoke.