I have set of identicle boys I was shocked when I found out I was having twins. We conceived them naturally. Now I want another set..i know it has to do with the family line and everything... But I have a set of twins and my SO has twin sister and his mother is a twin. My great uncles were twins. Would there be likely for me to have another set. Do you and your SO follow a certain routine you partake in to concieve twins?