Pregnancy And Smoking
There are some activities a pregnant woman should avoid all together and smoking cigarettes is one of them. No question about it, smoking when you're pregnant is a very bad choice.
First Trimester
For some women, quitting will never be easier than in early pregnancy when they develop a sudden distaste for cigarettes. If you stop smoking now, you can decrease your chances of miscarrying and it may also lessen the likeliness of affecting your baby's development.
It is best to stop smoking before you become pregnant, but stopping now is a very smart choice and your odds of having a healthy baby are good.
Second Trimester
If you stop smoking now, you can decrease your chances of developing such complications as placenta previa going into pre-term labor and even stillbirth. If you tried to stop smoking in your first trimester, but didn't succeed- at least for the sake of your baby- cut down on how many cigarettes you smoke each day. Every cigarette you don't smoke is going to help your baby.
Third Trimester
It is not too late to quite smoking. If you stop now, you can still improve your chances of delivering a full-term, normal birth-weight baby. Decreased birth-weight is directly related to the number of cigarettes you smoke. There is a direct relationship between smoking and impaired fetal growth. By quitting now, you can also better your odds of not loosing your baby to SIDS. Sooner is better, but quitting even in the last month can help preserve oxygen flow to your baby during delivery.