Week 4

How Punkin's growing:

This week marks the beginning of the embryonic period. From now until 10 weeks, all of Punkin's organs will begin to develop and some will even begin to function. As a result, this is the time when Punkin'll be most vulnerable to anything that might interfere with his/her development.

Right now Punkin is an embryo!!!, consisting of two layers: the epiblast and the hypoblast, from which all of his/her organs and body parts will develop.

The primitive placenta is also made up of two layers at this point. Its cells are tunneling into the lining of Amy's uterus, creating spaces for her blood to flow so that the developed placenta will be able to provide nutrients and oxygen to our growing Punkin when it starts to function at the end of this week.

Also present now are the amniotic sac, which will house Punkin; the amniotic fluid, which will cushion him/her as he/she grows; and the yolk sac, which produces Punkin's red blood cells and helps deliver nutrients to him/her until the placenta has developed and is ready to take over this duty.

How our life is changing:
The next six weeks are critical to your Punkin development. The rudimentary versions of the placenta and umbilical cord, which deliver nourishment and oxygen to our baby, are already functioning. Through the placenta, Punkin is exposed to what Amy takes into her body, so she's making sure it's good for both of them.

Belly Laughs:
Five things Amy can stop worrying about now that we're pregnant
• Tampons
• New thong underwear
• Birth control
• Trying to get pregnant
• Having a flat tummy

*Information was taken from Babycenter.com