Nguyệt was born in 1926. Nguyệt's father was Kha and her mother is Lục Vũ Đức. Her paternal grandparents were Mạnh Cung and Hoan (Loan) Đỗ. She had three brothers and four sisters, named Nha, Pha, Du, Phách, Hanh, Càn and Nguyên. She is the youngest of the eight children.