I was quite surprised about coke when I looked it up. A can of regular has far less than tea.
Had to google as I had abit of a panic yesterday when I'd drunk a coffee and 2 cans of coke.
The coca cola website reads "The Food Standards Agency recommends that pregnant women should not consume more than 200mg of caffeine a day. A can of Coca-Cola has 32mg of caffeine and a can of Diet Coke contains 42mg. Pregnant or breast-feeding women, or women trying to become pregnant, should follow their healthcare provider's advice regarding caffeine intake. For pregnant women wanting a completely decaf option, we offer several caffeine free drinks including Caffeine-Free Diet Coke, Oasis, Fanta, Lilt, Sprite and 5 Alive"