Can You Drink Coke When Pregnant . A can of coca‑cola classic contains 32mg of caffeine and a can of diet coke contains 42mg. It's unlikely, for a single dose, to do any harm to a developing fetus, but it's never a good idea to take any medication during pregnancy, except at a doctor's direction. Can You Drink NonCaffeinated Soda While Pregnant? from www.livestrong.com Even though food safety authorities around the world have given pregnant women the green light to drink diet soft drinks (via parents ), this warning was similar to one published by jama pediatrics, which also linked artificial sweeteners with early childhood obesity. Blog april 1, 2022 by yash it is possible to drink diet coke while pregnant, but the best way to do this is to drink a little water (or a lot of water) when you’re pregnant or when you have a healthy pregnancy. Orange juice has been found to be a great choice for pregnant women.