Will my baby be affected by my diet?

I'm on my 2nd trimester and still vomiting now and then. Due to this, I have not been taking my Obimin and Calcium Caltrate. Just recently I consumed fish oil. My food intake are basically anything I would eat just so I don't feel nausea. I have no healthy diet. Cold drinks relief my nausea like milo, sprite and sometimes cold mineral water. I am worried if my baby is not growing well. #1stimemom #advicepls