Happy 19th Week Birthday!
According to the baby newsletters you weigh about 8.5 ounces and measure 6 inches, head to bottom -- about the length of a small zucchini. Mommie doesn't like zucchinis so I can't wait to know what fruit or vegetable you resemble next week.
Some other things from BabyCenter:
His arms and legs are in the right proportions to each other and the rest of his body now. His kidneys continue to make urine, and the hair on his scalp is sprouting. This is a crucial time for sensory development: Your baby's brain is designating specialized areas for smell, taste, hearing, vision, and touch. If your baby is a girl, she has an astonishing six million eggs in her ovaries. They'll dwindle to fewer than two million by the time she's born.