Here is the information I have read from one of our medical books at work.
"A blastocyst is an embryo that has developed for five to seven days after fertilization. At this point the embryo has two different cell types and a central cavity. It has just started to differentiate. The surface cells, called the trophectoderm, will become the placenta, and the inner cells, called the inner cell mass, will become the fetus. A healthy blastocyst should begin hatching from its outer shell, called the zona pellucida by the end of the sixth day. Within about 24 hours after hatching, it should begin to implant into the lining of the mother's uterus."
this is what happens in a 5dt :
-1dpt ..embryo is growing and developing
0dpt... Embryo is now a blastocyst
1dpt....Blastocyst hatches out of shell on this day
2dpt.. Blastocyst attaches to a site on the uterine lining
3dpt.. Implantation begins,as the blastocyst begins to bury in the lining
4dpt.. Implantation process continues and morula buries deeper in the lining
5dpt.. Morula is completely inmplanted in the lining and has placenta cells &
fetal cells
6dpt...Placenta cells begin to secret HCG in the blood
7dpt...More HCG is produced as fetus develops
8dpt...More HCG is produced as fetus develops
9dpt...HCG levels are now high enough to be immediately detected on
HPT
Hope this helps!
from transfer...counting day one as the day after your transfer....
7-10 from what day? From retreival or from transfer. Probably a stupid question but just wondering.
Hey lady, I think implantation normally occurs day 7-10...