Horny or not?

I havnt been horny since becoming pregnant: I was like this the first pregnancy too. My husband doesn't understand and is starting to get frustrated. He keeps fighting about it with me. He says he thinks I feel too fat to have sex but that's honestly not it. I think I look good naked with this big belly lol but when he wants to fight about it it makes me not want to have sex even more. Is anyone else going thru this? It's so annoying cuz he doesn't get it.