Blastocyst Transfer

We examine your eggs for signs of fertilization in the morning after your egg retrieval procedure. Typically, approximately 60% to 75% of the eggs will fertilize (become embryos).

 

The next day (day two), embryos should divide to four cells, by the morning of day three, they should reach the eight-cell stage.

 

On day five, the healthiest embryos will reach the blastocyst stage. A blastocyst consists of a hundred or more cells surrounding a fluid-filled cavity at the center of the blastocyst.

 

     Fertilized Egg

  Four Cell Embryo

   Eight Cell Embryo

       Blastocyst

 

Embryo transfers are performed one to five days after the egg retrieval. Day five (Blastocyst) transfer can be used to minimize the risk of a twin pregnancy by being able to select and transferring only one "best" embryo.

 

If you have any questions regarding Blastocyst Transfer or to request an appointment, please contact us by phone at 650-322-0500, via email at care@BayIVF.com, or use the Contact Bay IVF Center form on this page.