Eating better?

I was told I really need to eat better due to me gettin so exhausted since I am not eating properly. It was due to the alllllllll day long nausea that I had. It's now starting to subside. But now I just have no appetite. I can go almost all day and not be hungry. So I was told I need to increase my protein especially since I am having twins. So I bought lean cuisines to have for lunch Is that ok? I have a protein shake and oatmeal for breakfast and I make a normal dinner meat veggie and starch just concerned I shouldn't be eating the frozen meals. But it's better then the ramen wi was eating constantly