In Vitro Fertilisation (IVF)
Day of egg retrieval is termed day zero. This day is known by lots of names, day of oocyte retrieval, egg pick up (EPU), oocyte pick up (OPU) or egg harvest. The day of EPU is the day you come into theatre and we retrieve the eggs you have been so lovingly nurturing.
The same day as the eggs are retrieved is usually when the sperm is prepared. Sperm for the male partner is usually produced on the day and prepared in the laboratory depending on the quality of the sperm. Frozen sperm, either from the partner or from a donor, can be thawed and prepared on the day as well.