>>52773497
2007 study
>Nearly all pregnant women drank in the year before they became pregnant; of these, 60.0% reported drinking when they knew they were pregnant, and 34.9% drank in the past 30 days. Among pregnant women who drank in the past 30 days, 7.4% reporting having ≥5 drinks on at least 1 occasion
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1530-0277.2006.00315.x
wtf, 60%