Q: Is smoking at 17 weeks harmful to my unborn baby? I was very upset and decided to smoke one cigarette. Now I feel really bad that I might have harmed my baby in any way.
A: No amount of smoking is 100% safe during pregnancy. However, adverse effects from smoking are more cumulative effects from long-term exposure, not from one single exposure. Don't worry, but don't make a habit of smoking during the remainder of your pregnancy.