Sister In Law 
To dream of your sister-in-law symbolizes attributes that the both of you may have in common. Also, contemplate the bond that you both share. If you are arguing with your sister-in-law, it may imply that you refuse to accept that you both have certain aspects or attributes in common.
Birth Control
*Please See Contraceptive.
Brother-In-Law
If you dream of your actual brother-in-law, consider the situation and the circumstances in the dream. This dream has more to do with every details such as occurrences and events than a visual image of your brother-in-law.
If you currently don't have a brother-in-law but dream that you do or you're the one, it symbolizes your search for family and acceptance.
Daughter-In-Law
To dream about your daughter-in-law indicates that an unwanted or sudden circumstance will bring either incredible joy or anguish. This is reliant upon the behavior of your daughter-in-law within your dream.