Conception

According to Ptolemy the sex as well as the incidents relating to a child, prior to its birth, may be deduced from the positions of the planets at the time of conception. The entire subject of prenatal cosmic stimulation is a welter of confused theorizing, which as yet lacks confirmation in practice sufficient to bring about any unanimity of opinion.

DeVore, Nicholas. Encyclopedia of Astrology. New York: Philosophical Library, 1947.