I agree with the others hon, drink what you can without making yourself feel ill. I find really icy cold water is so much easier to drink (and it made all the difference when I was suffering from morning sickness) and definitely add cordial or lemon juice/slices to add a bit of flavour. You'll find you'll probably get thirstier as your pregnancy progresses and you'll naturally drink more water anyway.

You'll know if you're not feeling hydrated so don't let it worry you. And remember, you've either limited or are not drinking diuretics such as tea, coffee and alcohol so you're probably getting more fluids than you normally would anyway

Try icy cold water though (I mean LOADED with ice cubes) - it has been my saviour.