Thank you all for your replies, nice to know others are in the same boat!

I'm 23 +2, not sure if that make me more or less worried as other peoples thirst seems earlier on!  I also have very dry lips and am constanlty haveing to apply lip salve to stop them hurting x x

hi there, how far on are you?? this is my thrid and with each one i'v been really thirsty (especially in evening and through the night) up until about 15 weeks or so and then it seems to go back to normal, don't know why, i think coz it happened each time i just thought it was normal for pregnancy, lol, x

It can also be a sign of diabeties so keep an eye on it and mention to your MW x

I am constantly thirsty too!! I am pregnant with my 2nd and dont remember being like this with my first.  I waken in the night many times with a severly dry mouth. I am 13 weeks.

the only time i've been really thirsty it turned out i had a urinary tract infection - it's your bodies way of trying to get rid of the infection.  i've been drinking more though - think it's because i've been craving sausage rolls and the salt must be making me drink more!!!

I'm constantly thirsty! 

Just drank a big glass of lemonade followed by a glass of Ribena and still feel thirsty.  Been fgoing on for a couple of weeks now and not too sure why!? Any one else had this?