Loss of appetite

Nicole
I'm 21 weeks pregnant and everything I read says I will start to get more and more hungry, but my hunger is no where to be found. Pre pregnancy I was used to eating (super healthy) 6 small meals a day. Now being pregnant nothing is appealing and I'm really not hungry. It's sometimes hard to even drink water. I'm nervous because I know gaining the right amount of weight is needed! Anyone else have this problem? If so what do you do about it!?