I was in maternity pants at 6 weeks. I had supermarket checkers etc asking when I was due by 8 weeks, even if I wasn't in maternity wear. Yeah.
Now, at 24 weeks, I am starting to get "really?" looks from people when I say I am due in January. Clearly people are ready for me to say "tomorrow" or at least "next month".
I have felt bigger all along too, though my fundus is measuring right on. I think my abs just completely gave up any resistance this time around.