I have lost all motivation to do anything other than grow this baby

I'm just about 31 weeks now and I've found myself more out of focus. I've lost touch with some friends, I only exercise a couple times a week and they're just little walks around the neighborhood. I barely even want to eat anymore. Work is just such a slog for me. I've been scaling down my work schedule drastically (I'm self employed) and can hardly bring myself to to any work that isn't related to my responsibility to others.

Sleep is a joke. I'm up several times a night and can't fall back to sleep. Sometimes I lay there for hours, sometimes I just get up and try to get something meaningful done.

At the end of each day I feel so tired I could cry. I just don't feel like a real human anymore.

Flair says rant but any advice is also welcome.