Im due on the 18th too! Nothing to report yet as far as I can tell - lots of braxton hicks, but they're not at all painful, so never anything close to a contraction as yet. Getting pretty impatient as I feel like everyone is waiting for me to pop at any second! I am hoping to have a sweep on Monday (mw said she'd do it if she can) so I guess I might be one of the lucky ones who that works for, but I'm not expecting so!
Only real complaint is sleep (or lack of) - can't get comfy, pee a lot, wake up and mind goes into overdrive. The usual, it sounds like from reading all your posts!