Most women reduce smoking after knowing about their pregnancy: Study

A recent study involving more than 400 pregnant people revealed that smokers who became pregnant reduced their smoking by an average of one cigarette per day before realizing they were pregnant. Participants then cut back on smoking by an additional four cigarettes per day. This study examines, instead, the impact of pregnancy on a person's smoking behaviour. Patterns of decline in smoking frequency were seen whether pregnancies were planned or unplanned.