Sex...are you having any?

So my lovely husband and I have not made love in weeks! Honestly I don't even remember the last time. He's been going to the gym early in the mornings and says he tired at night. Before I got pregnant we were going it all the time!!! Now nothing. I've said something to him many times in many different ways. I'm not sure if he's just scared to hurt the baby or if he's turned off by me. He's always said pregnant woman are so hot. So now I'm pregnant and nothing!!!! Anyone else going through this?