My body is preparing...

It seems as if pregnancy is beginning to catch up with me. So far, it's been really great and I haven't had any complications. Now that my due date is just around the corner, my body is getting very tired. I even seem to have a head-cold now, complete with a stuffy nose, sneezing, and watery eyes. I thought it was a cold at first (although I've never had one in August before) - but I'm beginning to think that my body is just getting tired of being pregnant! Any thoughts?