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mother goddess

n. A goddess, often portrayed as the Earth Mother, who serves as a general fertility deity, the bountiful embodiment of the earth.

Wikipedia
Mother goddess

A mother goddess is a goddess who represents, or is a personification of nature, motherhood, fertility, creation, destruction or who embodies the bounty of the Earth. When equated with the Earth or the natural world, such goddesses are sometimes referred to as Mother Earth or as the Earth Mother.

Many different goddesses have represented motherhood in one way or another, and some have been associated with the birth of humanity as a whole, along with the universe and everything in it. Others have represented the fertility of the earth.