loss of apetite?

I'm currently 38 weeks. I've noticed in the last week I have had a decreasing want to eat. sometimes I will want to eat a lot but then when I actually get the food I dont want it really. it's like I like the idea of food but I'm not actually hungry. and I've noticed I go much much longer between meals than I used to earlier in pregnancy. I used to eat ever 3 or so hours because of hunger but now I can go 7 hours and not even feel hungry. it's like I have to remind myself to eat cause my body's not doing it anymore. is this normal? and why? idk if anyone else has experienced this and it resolved or maybe it's a sign of impending labor in maybe the next week or so? I did have all day contractions yesterday that have now stopped unfortunately