This week, your baby is busy thumb sucking, toe wiggling and (not as adorable but equally impressive) making urine and breathing amniotic fluid in and out of his/her lungs while the spleen, liver and kidneys continue to develop. Lanugo (thin, downy hair) is growing all over the baby's body for warmth.
On a side note: Amniotic fluid is an amazing substance. It completely regenerates itself every three hours.
Oh how this little one is growing. Just 4 weeks left until we can find out what he/she is! I can't wait!