A latest report from the Centers for Disease Control and Prevention (CDC) says more than one in 10 pregnant women in the United States admits that they had alcohol. One in 33 admitted to at least one episode of binge-drinking, shows report.

Dr. Maura Quinlan, an assistant professor of obstetrics and gynecology the Northwestern University Feinberg School of Medicine in Chicago, said in a statement that data revealed in the report is very discouraging; it is higher than what has been thought.

The study's lead author, Cheryl Tan, an epidemiologist in the CDC's National Center on Birth Defects and Developmental Disabilities, said alcohol consumption during pregnancy increases the risk of miscarriage, premature delivery and stillbirth.

Babies can also be affected by a fetal alcohol spectrum disorder if a mother drinks while pregnancy. The disorder can cause developmental, behavioral and learning disabilities, Tan said.

According to CDC, fetal alcohol spectrum disorders are completely preventable. If a woman does not drink alcohol during pregnancy, her child has zero risk of a fetal alcohol spectrum disorder, said experts.

“Pregnant women should be aware that there is no known safe level of alcohol that can be consumed at any time during pregnancy. All types of alcohol should be avoided, including red or white wine, beer and liquor”, said Tan.

Binge drinking is of a big concern because it's very likely that those women are exposing their children to alcohol on a regular basis, said Dr. Jennifer Wu, an obstetrician and gynecologist at Lenox Hill Hospital in New York City.

"It's very discouraging. It's higher than I think any of us would have expected," said Dr. Maura Quinlan, an assistant professor of obstetrics and gynecology the Northwestern University Feinberg School of Medicine in Chicago. Quinlan was not involved with the new study.

"Women who are binge drinking do tend to drink more frequently," Wu said. "They are more likely to continue that throughout the pregnancy."

"Drinking is a part of our culture, and for many women it's harder to stop, even when they're pregnant," she said. "The majority of them know this is dangerous for their pregnancy, but it's an addiction like any other and can be difficult to switch off."