Food talk...

Question for all of you who are pregnant! I am a little over 13 weeks pregnant...on some days I eat breakfast, lunch, & dinner with a couple snacks in between & I'm fine but then other days I am constantly eating because I feel like I'm starving & I also feel exhausted! During these days I seriously feel like the baby is going through a growth spurt or something lol, but really it is so annoying when I'm trying to eat healthy amounts of food but my body wants to eat the whole house! Anyone else ever feel like this or is it just me?