follow up -
the flight was pretty smooth - some constant bumpiness for most of the flight, but nothing troubling at all. However, about 15 minutes before we landed, it got EXTREMELY bumpy - really awful, scary stuff. It lasted about 3 minutes (a very LONG 3 minutes!). as soon as we were below the clouds it stopped.
also - an interesting note - we were sitting right on the wing. at one point during some light-to-moderate chop I got up to use the restroom (I am 6.5 months pregnant) and headed to the back - the wait was too long so I went to the front instead and WOW - the difference in bumpiness was incredible. SO MUCH smoother in the front!