Thirsty

I am 30 weeks pregnant and I do drink A lot of water through out the day and night. I get these moments though of when I feel thirst it’s kind of hard to explain as I do not know if it’s me craving water I just feel thirsty bad and once I drink water I am fine or the feeling goes away in matter of seconds is this normal? I have googled it and it says it is as I am drinking for my little one also and I also saw it can be a sign of the g diabeties but I had my blood work done recently which all came back normal