Nej - följande dagar gäller för en blasto. Så klart kan det skilja från kvinna till kvinna och ägg till ägg hur snabbt/långsamt implantering och HCG utsöndring sker. Ca RD5 är implanteringen slutförd. Se nedan.
Days after transfer of 5-day embryo
One
The blastocyst begins to hatch out of its shell
Two
The blastocyst continues to hatch out of its shell and begins to attach itself to the uterus
Three
The blastocyst attaches deeper into the uterine lining, beginning implantation
Four
Implantation continues
Five
Implantation is complete, cells that will eventually become the placenta and fetus have begun to develop
Six
Human chorionic gonadotropin (hCG) starts to enter the blood stream
Seven
Fetal development continues and hCG continues to be secreted
Eight
Fetal development continues and hCG continues to be secreted
Nine
Levels of hCG are now high enough to detect a pregnancy