Wednesday, September 7, 2011

Week 3 {Development}

Although this is the earliest a pregnancy test would turn positive, it’s rare that an accurate result is the case. If Baby Suarez is forming, there’s a lot going on in Mommy’s womb this week:

Baby Suarez is just a tiny ball consisting of several hundred cells that are multiplying madly. Once the ball of cells (called a blastocyst) takes up residence in Mommy’s uterus, the part of it that will develop into the placenta starts producing the pregnancy hormone hCG (human chorionic gonadotropin), which tells my ovaries to stop releasing eggs and triggers increased production of estrogen and progesterone (which keep my uterus from shedding its lining—and its my passenger—and stimulates placental growth). HCG is the hormone that turns a pregnancy test positive; but Mommy still isn’t sure if Baby Suarez is here, or if its just a false alarm.

Meanwhile, amniotic fluid is beginning to collect around my ball of cells in the cavity that will become the amniotic sac. This fluid will cushion Baby Suarez in the weeks and months ahead. Right now, our little blastocyst is receiving oxygen and nutrients (and discarding waste products) through a primitive circulation system made up of microscopic tunnels that connect our developing baby to the blood vessels in my uterine wall. The placenta won't be developed enough to take over this task until the end of next week.

{Info from}

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