Newly renovated houses may cause respiratory infections or allergic symptoms in pregnant women, and if pregnant women inhale toxic and harmful gases, it will affect the growth and development of the fetus. Newly renovated houses often release a large amount of formaldehyde, as pregnant women in the late stages of pregnancy belong to the susceptible group, in this environment is easy to cause respiratory irritation, and some pregnant women will also have allergic symptoms and so on. If pregnant women live in high formaldehyde harmful gas for a long time, it is easy to lead to abnormal growth and development of the fetus, and even preterm delivery may be. If the new house decoration materials are green, the impact on pregnant women and fetus is relatively small. Daily life should open windows and ventilation diligently to create a healthy and safe living environment for pregnant women and fetuses. Pregnant women should pay more attention to rest, maintain a happy mood, and avoid exertion. It is recommended to try not to let pregnant women live in the newly renovated house, if pregnant women in the late stages of pregnancy any discomfort timely consultation, under the guidance of professional doctors active treatment.