I think it's probably extra difficult at this time because there's a major change coming and you're getting to the last stretch, a major stress on your nerves.
At this point, even if doing your regular stuff is difficult or nearly impossible, it's still something normal/routine to hold on to, and people tend to be comforted by anything routine when they know change is coming.
Hang in there, I'm sure you'll pull through just fine.
I am almost 34 weeks along