Pregnancy at week 7, now the embryo is the size of a blueberry.
Compare to the last week the embryo has doubled. By now, the embryo has grown to around 0.4 inches (one centimeter) long. Clinical will sometimes call this measurement the “crown-rump “length because it is the distance from the top of the baby’s head to the bottom of the rump.
So, what’s going on with development? By this point, the brain is going through a phase of rapid growth and development, so rapid that the head is growing faster than the rest of the body .this causes the embryo to have a large forehead.
The eyes and ears are also developing quickly. The inner ear( the part that’s responsible for hearing and balance)is nearly complete, but the part of the ear that’s visible on the side of the head won’t develop for another few weeks. For now, it is just a little dimple. The eyes are forming lenses and the start of eyelids. Nostrils appear along with a little bump of a forming nose.
Where the arms and legs will be, limb buds have started to form cartilage. This cartilage will eventually form the bones of the arms and legs. The arm buds will lengthen and then flatten at the end of form hands. A similar process is also occurring in the soon–to–be legs and feet.
The embryo also has a tiny tail, which will gradually get smaller until it disappears in the coming weeks.