I am getting the silent treatment

Ok so I have a mental problem where I need my husband to talk otherwise my mind will go 110 miles an minute. I dont know what I did he wont say anything. The last conversation was literally about rocks and that I wanted to paint one and hide it somewhere for someone else to find. He said no and since it's not that big of a deal I said lol killjoy. I wasn't upset or anything. So I went on to pinterest to just look at random things. And he didn't say anything we got home and he went up the 3 flights of stairs without saying anything.he left me down stairs in the car so I got the food and soda out of the car and hobbled po the stairs ( I am 32 weeks pregnant) got home he was playing video games and still hasn't talked to me so i am going to take a bath i guess. I dont know what i and he wont say so I dont know what to do.