Deuteronomy 21:13
21:13 discard the clothing she was wearing when captured, and stay in your house, lamenting for her father and mother for a full month. After that you may have sexual relations with her and become her husband and she your wife.
Deuteronomy 24:5
24:5 When a man is newly married, he need not go into the army nor be obligated in any way; he must be free to stay at home for a full year and bring joy to the wife he has married.