Ann Macy Roth explains that there are ancient Egyptian divinities connected with fertility.
Ann Macy Roth, "Father Earth, Mother Sky, Ancient Egyptian Beliefs about Conception and Fertility" in Alison E. Rautman, ed., Reading the Body (Philadelphia: University of Pennslyvania Press, 2016), 186-201
These ideas also affect Egyptian ideas regarding the supernatural world. Egyptian divinities connected with creative fertility are either indisputably male or are androgynous but predominantly male. These gods commonly take three forms: one originating in human fertility, one in animal fertility, and the third in plant fertility. The ithyphallic form (Fig. 15.1) obviously displays the male sexual potency of human reproduction; but by its mummiform nature, it also alludes to the fertility of human death and burial— the burial of both seeds and human beings in the earth, from which new life will emerge. The second form associated with fertility— bulls and rams— is also indisputably male (Quirke, 1992:48).