He also said that in vitro fertilization (IVF) for conceiving were 'arrogance'.
"The human and Christian dignity of procreation, in fact, doesn’t consist in a ‘product’, but in its link to the conjugal act, an expression of the love of the spouses of their union, not only biological but also spiritual," reported the Daily Mail the Benedict as saying.
He further asked the specialists in his audience to defy "the fascination of the technology of artificial fertility," and warned against "easy income, or even worse, the arrogance of taking the place of the Creator."
He said that sperms or egg donation including methods like IVF were banned for members of the Catholic Church.
"The logic of profit seem today to dominate the field of infertility and human procreation," said the Pope.
He, however, said that the church advocated medical research into infertility.