Blastocyst Photo
In this photo: Blastocyst culture is incubation of the embryo until five days after the retrieval. This technique can help increase pregnancy rates and lessen the risk of multiple pregnancies.
Fertilized Embryo (Day After Retrieval)
In this photo: Fertilization occurs in the lab when a sperm cell penetrates the egg. This usually takes place within hours after the sperm and the egg have been put together.