"Next day, they were in consternation to see that Samba, the man who had been dressed up in female clothes, developed labor pains and lo and behold, gave birth to a mace! This filled them with terror
because they felt that their end was near as the rishis had cursed." MB 105 (Mahabharata Retold By C. Rajagopalachari) http://www.krishnapath.org/library/mahabharata-free-download/