Can't, won't move.

So, 32 weeks and absolutely in pain because of my back. We just moved houses and the more I clean and organised the more stuff appears to be done. The nursery was/is our dumping room and I sooo want it to be ready. But with this heat, heartburn and constant back pain today I just don't seem to have the will or energy to do anything. I feel bad and guilty that my partner will come from work to a still messy house but the bed is soooo tempting. Anyone feeling with lack of energy??