I don’t have much room to maneuver now that I am over 18 inches long and tip the scales at about 5 1/4 pounds (the size of a honeydew melon). Because it’s so snug in Mommy’s tummy, I’m not as likely to be doing somersaults anymore, but the number of times I kick should remain about the same. My kidneys are fully developed now, and my liver can process some waste products. Most of my basic physical development is now complete — I’m just going to be spending the next few weeks putting on weight.