Wednesday, August 31, 2011

Week 2 {Development}



Another week has gone by, but it’s still too early to know if our little bundle of joy is on its way. If so, here’s what she would be doing this week:

Before she actually starts growing, Mommy will set the stage. Last week, an increase in the amount of estrogen and progesterone coursing through my bloodstream prompted my uterus to form a lush, blood-rich lining of tissue to support a potential fertilized egg. At the same time, in my ovaries, eggs were ripening in fluid-filled sacs called follicles. At the beginning of this week (often around day 14 of a 28-day cycle), I ovulate. One of my eggs erupts from its follicle and is swept away from my ovary and into a Fallopian tube. During the next 12 to 24 hours that egg will be fertilized.

Over the next ten to 30 hours, the sperm's nucleus will merge with the egg's as they combine their genetic material. If the sperm carries a Y chromosome, our baby will be a boy; if it's an X chromosome, we'll be welcoming a girl. During the three- to four-day trip from my Fallopian tube to my uterus, the fertilized egg will divide into 16 identical cells. A day or two later, it will begin burrowing into the lush lining of my uterus, continuing its amazing growth and transformation. By this time our developing baby is just a little ball of cells that's officially referred to by scientists as a blastocyst: It has an inner cell mass that will become the embryo itself, a fluid-filled cavity that will become the amniotic sac, and an outer cell mass that will become the placenta, the pancake-shaped organ that delivers life-sustaining oxygen and nutrients to our baby and carries away her waste products.


{Info from babycenter.com}

Wednesday, August 24, 2011

Week 1 {Development}



Baby or no baby? Mommy and Daddy still don’t know. It’s far too early to take a pregnancy test.