I had a coffee just about every day my first pregnancy. I usually didn't have more than one (or if I did, I would often make the second one decaf). Believe it or not, espresso actually has much less caffeine on average than regular brewed coffee, so I tended to stick to espresso drinks and to ask for just one shot (a large often has two). I personally don't drink much soda (like Coke) because I don't really do sugar, but equally, they actually don't have much caffeine either (compared to like a brewed cup of coffee), but I wouldn't drink the sugary ones just because of the sugar. I had a very healthy pregnancy and a healthy baby.