Not had loads to begin with as made me queasy, but had few diet cokes and then as pregnancy went on and decided the nasties worse couple of cans of coke a day to combat tiredness as was within NHS guidelines. Annoying woman at work just told me (month before due...) this is a v bad idea, didn't wait to hear why and changed subject - weight gain fine, caffeine in line with NHS - please someone tell me this is ok?!