Need help...

On top of being pregnant, I've been sick for the past 3 weeks. Basically a less severe version of the flu, and it's not going away. It's taking all my energy and I just feel sick all day from the coughing and sneezing. My husband just doesn't get it how I can feel bad all day. I've told him time and time again I'm sick and my body is trying to make a baby so I can't even fight it but he doesn't understand. He's not rubbing my stomach, my back, he's not doing anything. How can I get him to understand this is the worst I've ever felt in my life?