peśy aṇḍaṁ vā tataḥ param

kalalam-mixing of semina and ovum; tu-then; eka-ratrena-on the first night; panca-ratrena-by the fifth night; budbudam-a bubble; dasa-ahena-in ten days; tu-then; karkandhuh-like a plum; pesi-a lump of flesh; andam-an egg; va-or; tatah-thence; param-afterwards.