If you have an unplanned pregnancy while smoking and drinking, you need to undergo a detailed prenatal checkup and abortion is recommended if you find abnormalities in the fetus and signs of preterm abortion. At the same time, pregnant women should quit smoking and drinking in time to avoid the stimulation of tobacco and alcohol to affect the growth and development of the fetus. If a man smokes and drinks for a long time, it may affect the quality of sperm to a certain extent, which in turn may affect the fetus; if a woman has the habit of smoking and drinking for a long time, to a certain extent, it may affect the fetus’ morphology and brain development, or lead to The presence of congenital diseases. If the fetus (embryo) is not abnormal and the pregnant woman has no signs of pre-eclampsia, she can have a normal child. In addition, if the pregnancy is normal, the pregnant woman should take active protective measures to quit smoking and drinking habits to avoid affecting the fetal development and miscarriage; other family members should also try to quit smoking to keep the pregnancy away from second-hand smoke and create a good environment for the fetus to grow and develop. According to the doctor’s advice, women should prepare for birth in a healthy way, maintain a rich and balanced nutritional intake, do proper exercise, and conduct regular maternity checkups to observe the fetal growth and development in a timely manner.