Hi and welcome to Healthcare magic. Thank you for your querry.
well, thirst is not actually sign of pregnancy
. It can be more sign of diabetes
or some hormonal and metabolic disorders. SO I suggest to do basic blood test
and thyroids and steroid hormone
level check. It is hard to say what it is without further tests. Only you can know is there chance of pregnancy.This is easily established. WIsh you good health.