Measuring doesn't really mean anything, it can change pretty easily based on baby's position when the dr measures you and how you carry. I've been measuring a couple weeks behind this time around and they've sent me for ultrasounds to check baby and each time are surprised how big she is, she might even end up bigger than my first
Ah thank you, everyone keeps asking if it's twins also it's starting to drive me nuts. And I got called a liar when I said I wasn't due until New Year's Eve. Hopefully she is was just laying funny.
It really does depend a lot on how your baby's positioned. Mine dropped around 34 weeks, and ever since I've been measuring about 2 weeks earlier.