First time TTC since loss.

Is anybody else going through this? We got pregnant our first try in January. So I've heard of other women struggling with TTC being a chore or just being too tired but I couldn't relate. Well according to glow I'm ovulating tomorrow and the last thing in the world I want is to have sex right now. We tried last night and I just couldn't get into it and I got really upset and just cried myself to sleep. Today Im exhausted and my body hurts (fibromyalgia) and I'm just not in the mood. Do you think my body is trying to tell me I'm not ready? We've had a very healthy sex life for many many years. Part of me wants to just push thru it and knock out a quicker but I just can't get off this couch... Thanks for any advice.