Healthy food makes me sick :(

Ugh I've been trying so hard to eat healthy during this pregnancy but it keeps making me sick!  My iron and calcium are low, I'm anemic and total protein is down but every time i eat fresh fruits and vegetables and grilled meat I either puke or get terrible heartburn or both :/ and the supplements make me throw up immediately.  Gahh I just keep telling myself.. Only 3 weeks left!!  Anyone else super ready to have the baby?