
We found out we were pregnant at week 4 and according to
http://www.babycenter.com/slideshow-baby-size that meant our baby was the size of a poppy seed. This website and others seem to have a system down for comparing your baby to food, especially fruits. So at week 7, when we told my family that we were pregnant, our baby was being likened to a blueberry. This is why my younger sister, Rachel, began affectionately calling our child "baby blueberry". And since then, I've nicknamed our baby "blue"*. I did attempt to find other websites that compared your baby to other things, but no such luck. Though I did find an amusing take on the week by week from a daddy blog entitled "His Boys Can Swim" who put our 7 week baby at the size of the power button on your TV remote. I like the fruit analogy better.
*NOTE: The nickname "blue" is in no way a reflection of our baby's future commitment to any particular sports team whose catch phrase happens to be, "Go Blue". No OSU fans were hurt in the making of this nickname. Scarlet and grey donations appreciated.