Cravings

So I’m pregnant and cravings certain things that aren’t in my fridge so of course I would like to go buy it but my boyfriend doesn’t understand that’s certain things I cannot eat I’m already feel sick and barely have an appetite. I don’t think he wants to understand why I feel the way I do.. my body feels like it’s stretching I’m always tired but he forces me to get out of bed and says I lay down too much but I can’t help it. Anyone have any advice about this ?