yes - I have a few maternity tops I can't wear to work anymore, as they're getting too short! They still fit me horizontally... but that doesn't cut it.
And yup, the kids are putting on about half a pound every week at this point. I felt like I was looking really tiny for X weeks... up until about two weeks ago. That's also the point when the skin just below my belly button started KILLING me, too. Sigh. Now I feel like I might actually look like I'm nearing the end of the pregnancy, I feel awkward moving around (getting out of the recliner at home, for instance), and I can tell the stretch marks are coming. Such is life!
At the same time, I kind of sit there going "only 6 weeks to go?!?" even when I'm looking in the mirror. Crud, but there's still a lot to do!