Absent nesting instinct?

Has anyone else pretty much skipped the "nesting" instinct? I don't feel like I've really gone through it and I'm 40 weeks pregnant. I've been in alot of pain though, I have an AvM in my left leg which keeps me off my feet most of the time lately. I washed all of baby's clothes and bedding and his nursery is all set up but I still feel like my house is a cluttered mess. We have a dog and cat and heat our home with wood so there's always dust which drives me insane. I've given up keeping up on cleaning. As long as dishes are done and laundry is clean, I'm over housework.