At this point, our baby about the size of a sesame seed, and he/she looks more like a tiny tadpole than a human. He/she's now made up of three layers — the ectoderm, the mesoderm, and the endoderm — which will later form all of his organs and tissues.
The neural tube — from which our baby's brain, spinal cord, nerves, and backbone will sprout — is starting to develop in the top layer, called the ectoderm. This layer will also give rise to his skin, hair, nails, mammary and sweat glands, and tooth enamel.
His/her heart and circulatory system begin to form in the middle layer, or mesoderm. (This week, in fact, his/her tiny heart begins to divide into chambers and beat and pump blood.) The mesoderm will also form our baby's muscles, cartilage, bone, and subcutaneous (under skin) tissue.
The third layer, or endoderm, will house his/her lungs, intestines, and rudimentary urinary system, as well as his thyroid, liver, and pancreas. In the meantime, the primitive placenta and umbilical cord, which deliver nourishment and oxygen to our baby, are already on the job.
This week symptoms have been stronger. One of he most noticeable symptoms is my new bedtime, 8pm! I find myself kissing Mark goodnight right after dinner. Needless to say the dirty dishes and unfinished homework are piling up. Also, I have had more dully achy cramps (which I think are normal). Also, I am still experiencing random food aversion. The most shocking thing is anything sweet makes me sick to think about. I used to eat ice cream and/or m&ms every afternoon. I have also been so thirsty all the time! Which probably is the reason my frequent trips to the restroom are growing.
Once again, all these symptoms just remind me of the huge blessing we have been given. And, I am so thankful that I haven't experienced much nausea and actually haven't been sick at all. This might change, which is fine if it does, because it means you have a healthy baby. But, for now, we are enjoying our blessings.
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