Women could not expect to be paid the same wage as a man for the same work, despite the fact that women were as likely as men to be married and supporting children. In 1906, the government found that the average weekly factory wage for a woman ranged from 11s 3d to 18s 8d, whereas a man's average weekly wage was around 25s 9d. Women were also preferred by many factory owners because they could be "more easily induced to undergo severe bodily fatigue than men". Childminding was another necessary expense for many women working in factories. Pregnant women worked up until the day they gave birth and returned to work as soon as they were physically able. In 1891, a law was passed requiring women to take four weeks away from factory work after giving birth, but many women could not afford this unpaid leave, and the law was unenforceable.