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 5-day transfer (5dt).

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