It is pretty normal to feel that way. Perhaps the days that's counting down to birth and fatigue feeling hence you just don't have the urge to do anything (not even chores, work, etc). Have you start preparing baby's stuff, if yet to be done maybe you can do slowly. Focus on work then baby's stuff. It may help you to do one thing at a time at no rush or not focus. Sometimes, our mind are not at ease because we are also feeling nervous and excited at the same time. It can be that too. Dont worry much. Do what you can and do slowly.