You may have been shocked to hear that supermodel Kate Moss and former Atomic Kitten pop singer Kerry Katona both admitted to smoking while they were pregnant. And singer Belinda Carlisle of the Go-Go's “drank daily” while she was pregnant, admitting, “I didn't really pay attention to what other people said.”

Equally shocking is the news that 8% of pregnant women in the U.S. smoke cigarettes, and almost 4% smoke e-cigarettes, according to a survey published in JAMA Pediatrics.

That means during the 6 million pregnancies — which produce around 4 million live births — in the U.S. annually, 320,000 women are smoking cigarettes and 144,000 are vaping.

Smoking increases the risk of preterm birth, birth defects (cleft lip or cleft palate), and infant death. Vaping is toxic because of the heavy metals in some of the liquids, not to mention the nicotine.

But there's more: 12% of pregnant women admit to drinking alcohol, and 4% admit to binge drinking (that's four or more drinks) within the past month, according to info published in the Morbidity and Mortality Weekly Report.

A new international study finds that ANY prenatal exposure to alcohol is definitively connected to impaired cognitive abilities and related problems in teens.

The Centers for Disease Control and Prevention cautions, “All types of alcohol are equally harmful, including beer and wine,” and can cause “lifelong physical, behavioral, and intellectual disabilities.”

Your best bet? Stop drinking and smoking before becoming pregnant.

But it's never too late to do the right thing. For help to quit smoking, call 1-800-QUIT-NOW. For alcohol abuse, search “preconception counseling” at my.clevelandclinic.org.