The answer is simple, a god must impregnate your mother.
I gave this some thought, as I read the following National Geographic article, having had my mind thoroughly impregnated by holy spirit in the 40 years I spent as a temple slave, serving the Chief god YHWH and his side-kick Jesus, who, unlike me, had been completely begotten by holy spirit.
So with interest, I read about Olympias, the mother of Alexander the Great, who told her son (Alexander) that he had been begotten by the chief god Zeus, who had turned up on night in her bed and had accepted his advances,
https://www.nationalgeographic.com/history/magazine/2019/11-12/queen-olympias-ancient-macedonia/
Olympias is an interesting woman. In a era when society had conservative notions about women's role (not dissimilar to JW standards) women, "were supposed to be quiet, passive, stay out of public life, and maintain the family," Olympias grew up believing that the Greek hero (and demi god) Achilles had impregnated her mother resulting in her (Olympias;) birth.
According to Plutarch (a Greek biographer) Olympias told her son, Alexander (Who became 'great') that she also had also experienced a divine sexual experience, when the chief Greek god, Zeus had turned up in her bed and impregnated her, leading to the birth of Alexander.
Alexander's belief was pictured by the Italian artist Giulio Romano in the 16th century fresco that he created on the the wall of the Sala di Psiche of the Palazzo del Te in Mantua, Italy. In the fresco Zeus is visualised as a sea-serpent about to have intercourse with a naked Olympias.

Did Alexander believe this? As he started his Empire building wars, he took time off to visit an oracle in the Libyan desert, where he was pronounced to be the son of the Egyptian chief god, Amon, who in Greek thought was supposed to be Zeus.
Which set me to wondering how many young women in hellenised Judea thought their bed had been visited by a god? And, how many young men got to think that some god or the other was their real father?