As Ava's mum said, theres no harm in taking it easy, but what you're feeling is quite normal at your stage of preg. Your body is carrying around more weight and your tummy is stretched so you will feel heavy in the belly area and completely exhausted, even on a day you don't even do a lot.

I worked 10 hr days in a very demanding jb right up until I was 38 weeks and besides making me very tired, it was no harm to me or bubs.

As long as you BP is in good range and you are not experiencing anything like painful tummy cramps, etc I wouldn't worry. Keep up all appointments and never hesitate to call the hossy or your OB if something is really concerning you.

Bub will come when ever she is ready so try not to think about it too much! Take care and enjoy this final stage of your pg!!