During the INVO Procedure, the patient undergoes a stimulation and monitoring cycle. Once the eggs are retrieved and sperm is collected, they are placed into the INVOcell device. The INVOcell device with the Retention Device is immediately placed in the vaginal cavity to naturally incubate the eggs and sperm and to allow fertilization and early embryo development to take place. After incubation, the device is removed allowing for the transfer of embryos.