There are many factors that influence the success of a surrogate pregnancy, including the age of the Intended Mother or Egg Donor, as well as the number of embryo transfers attempted.

Overall, in regards to surrogacy, fertility clinics in the US have a success rate of about 75% per transfer. As a result, it is not uncommon to need to attempt more than one embryo transfer. 

For more information on building your family through surrogacy, set up a consultation.