Baby's Development:

The embryo is now composed of about 150 cells.  They are divided in three layers that will each develop in an independent manner.

The internal layer is called the endoderm (or endoblast).  This will become the respiratory and digestive system as well as certain glands including the liver, pancreas, thyroid and thymus.

The middle layer (the mesoderm) will be busy!  It will become bones and cartilage, the circulatory system (heart & blood vessels), the inner skin layer (dermis), muscles, excretory system, loins & genitalia and also the outer covering of the internal organs.

The outer layer (ectoderm or ectoblast) will provide the brain & nervous system along with the epidermis (skin, hair, nails).

During this second week, the embryo floats freely in the uterus and survives thanks to the secretions of the uterine lining.

The three layers

Baby's Profile:        Size:       -  0.1 - 0.2 mm

                                  Weight:  -  

Her Emotions:

There are not many signs that indicate the presence of a future baby yet, except maybe that at the end of the second week you want to sleep for a month. In some cases you may experience a little tenderness in the breasts or a little nausea.

Some women find that they need to pee a lot...  another sign of pregnancy.

His Emotions:

You probably still don't have a clue about all of the things that are about to come raining down on you!

Useful Information:

There are two options for a pregnancy test.  After this week, if your period hasn't started yet, you will want to make a visit to either your pharmacy for a urine based test (99% reliable), or you can go to a blood analysis lab and have them do it for you.