Sighs when you can't sleep

So I'm kinda starting to hate working 3rd shift now that I'm expecting. I feel more tired and been having lots of pain. ( like my lower back will hurt almost like a pinched nerve, my right hip hurts, along with my right knee which I have arthritis in. And my feet kill me and my neck has been bothering me ) well I worked 3 nights in a row for 3rd shift and I'm on my feet constantly at this job no matter what shift I take but anyways I'm off tonight and of course I can't sleep and I have to be up early.... so many thoughts are going thru my head .. happy and sad like about my situation I'm going thru.. long story short I messed up. I felt alone and did something. But I don't regret my child that came out of this. I'm 21 weeks and 4 days pregnant.