Helpful Link

It took me a while to google the right search terms to come up with this, so I thought I would list it here for helpful info. This table (about halfway down the page) shows what the Crown To Rump Length should be at different gestations. My measurement today (at 8w2d) was 18.2mm which is exactly where it should be! My first ultrasound was at 7w0d and I measured 11mm which was also right on target.