Poor appetite

Hello everyone, I am currently wk14 and i have poor appetite. I have minimal morning sickness hence seldom vomit. Is it still normal to have poor appetite? I am probably only eating the equivalent of 1.5meals a day…. I haven’t gain any weight since the start of pregnancy. Is this a cause for concern? I am worried that baby will not receive enough nutrients. At the same time, food really don’t appeal to me anymore, I only eat a few mouthful of food just to stave off hunger so that I don’t feel nauseous. #firsttimemom