IVM stands for “in vitro maturation,” not to be confused with IVF or “in vitro fertilization”, though both have some things in common and the same aim of facilitating a successful pregnancy.  IVM might best be described as a milder, gentler form of IVF which involves harvesting eggs from naturally developing or minimally stimulated follicles and allowing them to mature in vitro (outside of the body in a controlled laboratory setting) until ready for fertilization with sperm.