Tuesday, August 31, 2010

What's Happening?

So for those of you that are curious, this is what is happening with the embryo after a 3-day transfer:

Day 1: embryo continues to grow & develop, turning from a 6-8 cell embryo into a morula
Day 2: the cells of the morula continue to divide, developing into a blastocyst
Day 3: the blastocyst begins to hatch out of its shell
Day 4: the blastocyst continues to hatch out of its shell & begins to attach itself to the uterus
Day 5: the blastocyst attaches deeper into the uterine lining, beginning implantation
Day 6: implantation continues
Day 7: implantation is complete, cells that will eventually become the placenta & fetus have begun to develop
Day 8: human chorionic gonadotropin (hCG) starts to enter the blood stream
Day 9-10: fetal development continues & hCG continues to be secreted
Day 11: levels of hCG are now high enough to detect a pregnancy
The picture above shows the embryo at the time of fertilization to day four after 3-day transfer.


Desiree said...

I never knew all that! I hope you're resting and taking it easy - you are pregnant after all! :-) I'm sure you already know it, but I love the term PUPO - Pregnant Until Proven Otherwise :-)

That's what you are!

Dandle Dreams said...

So now I bet your little embies are scouting around, looking for the best place to set up camp. Thinking of you.

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