normal??

I'm 30 weeks and I haven't had any cravings throughout my pregnancy.. BUT.. I crave Coca Cola and Pepsi constantly!!! I had a dream I was chugging it last night, lol. I'm always so thirsty..and I do drink about 6-8 bottles of water a day but honestly feel like I can drink coke all day long. Anyone else feel this way?! I know it's important to watch my caffeine intake and I also was negative for GD in regards to the thirst