Did you know that an unborn baby is about the size of a kidney bean with webbed fingers at 9 weeks, or that a unborn babys teeth begin to form at 12 weeks? This Visual Timeline outlines the progress and development of an unborn baby. Learn what changes are taking place from a 4 week old embryo to a 9 month fully developed baby that is ready to be born.
Ideal for learners age 13-99.