I am one of 4 brothers in a family. One of my brothers got married about 2 years ago to a very sweet woman and they have been trying to have kids. My sister in-law has had about 4 miscarriages that cannot be explained. The whole family is devastated. My brother takes some heavy duty medications for mood disorders.I am not a doctor but I suspect the medication he takes may have something to do with it.He can not do without the meds and his functionality is really declining, and he is very depressed.We really don't want his wife to leave.If for some reason they don't end up having a baby together and things get worse for my brother,I am contemplating trying to have kids with my sister in-law so as to keep her in the family and to have heirs for my brother's name and properties. I would not want her to adopt or have kids by someone else and bring them to our ranch.