Some techniques may introduce a third party (a donor) or even a fourth party (two donors) or a fifth party (two donors and a surrogate mother) into the childbearing process.
Daži paņēmieni paredz trešās puses (donora) vai pat ceturtās un piektās puses (divu donoru vai divu donoru un surogātmātes) iesaistīšanu bērna radīšanas procesā.