40 weeks with seriously sore joints!

Happy 40 weeks to me! It's my due date today and I've woken up with extremely sore and painful joints, elbows, knees but especially my hips!! They are killing me and I haven't even moved out of bed yet! Does anybody know what this means? is it a good sign? or perhaps I just slept funny and it's not even pregnancy related! Fingers crossed my little girl decided to come soon xx