I get like that sometimes, and I'm 27 weeks. I Just don't feel like eating. Usually when I make myself eat I start to realize just how hungry I actually was. As long as you can and do eat, it shouldn't be a problem.
same with me! when i do force myself to eat, i realize how hungry i was. but if I dont make myself eat, ifeel as tho I could go all day without eating and it won't bother me. idk, its confusing but im glad im not the only one.