Hi Ange

Have you been checked for Gestational Diabetes? Thirst is just one of the symptoms of this.

Otherwise, it could just be your body's need for extra fluids... I go through bouts of thirst quite regularly but I drink a lot anyway. Do you normally drink a lot?

Do you have any fluid retention/swelling or are you peeing a lot too? Sorry if TMI..

Give your Ob or MW a ring to ask if you're worried - that's what they're there for!