What does it mean that women will be "saved" through childbearing (1 Timothy 2:15)?
'The most likely interpretation that takes into account the immediate context is that, rather than abandoning their intended roles by demanding teaching and authoritative positions in the church, women will find true fulfillment through childbearing. Paul is saying God calls women to be faithful, helpful wives, raising children to love and worship God and managing the household wisely (1 Timothy 5:14;Titus 2:3–5). While this view is not without its difficulties, it appears to harmonize best with the context and with the remainder of Scripture.'
http://www.gotquestions.org/saved-childbearing.html
This is the traditional Christian view of this scripture which the JWs adopted. Not difficult to understand at all. Women should be at home looking after their husband, having babies and keeping their mouths shut. Paul's infamous misogyny.