What Happens After an Embryo Transfer?

Once you complete your embryo transfer, you will have approximately 1½ weeks to wait before a pregnancy can be detected. The following tables outline an approximate timeline for what happens during a successful pregnancy after a 3-day transfer (3dt) and a 5-day transfer (5dt).

3-Day Transfer

Days Past
Transfer (DPT)
 Embryo Development
 One The embryo continues to grow and develop, turning from a 6-8 cell embryo into a morula
 Two The cells of the morula continue to divide, developing into a blastocyst
 Three The blastocyst begins to hatch out of its shell 
 Four The blastocyst continues to hatch out of its shell and begins to attach itself to the uterus
 Five The blastocyst attaches deeper into the uterine lining, beginning implantation 
 Six Implantation continues
 Seven Implantation is complete, cells that will eventually become the placenta and fetus have begun to develop 
 Eight Human chorionic gonadotropin (hCG) starts to enter the blood stream 
 Nine Fetal development continues and hCG continues to be secreted 
 Ten Fetal development continues and hCG continues to be secreted  
 Eleven Levels of hCG are now high enough to detect a pregnancy 

 

5-Day Transfer

Days Past
Transfer (DPT)
Embryo Development
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