Baby at 7 weeks

The hormones like progesterone, oestrogen, HPL and HCG are rushing around your body so you will probably be more aware of being pregnant. It is during this week the tiny embryo (baby) will be transformed into a human looking foetus.

Development
The heart has well defined four chambers and it has a regular beat. The lungs, muscles, bones and the limbs are developing and begining to take shape.

The head and brain are growing rapidly, with ridges defining three areas of the brain.
The forebrain - which controls memory and thinking.
The midbrain - is responsible for co-ordinating messages.
The hind brain - regulates the heart, breathing and movements of muscles in the body.

Nasal and oral cavities are developing,which will become facial features such as eyes, ears and mouth.

Appearance
The limbs are now developing into paddle shaped arms and legs. A neck is starting to separate the relatively large head from the body. There is a dark tinge where the eyes are forming and eyelids are also developing. The tip of the nose is present. The baby has lips and a tounge but it is not clearly seen.

Movement
Baby will start to make tiny movements. This can be detected by sensitive ultra sound equipment. The sex glands are also developing.

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