I really want twins. I myself am a twin. My mother is a twin (and my mother's twin sister also has twins aka my first cousins). My grandmother has twin brothers (but she isn't a twin). My grandmother's mother (my great grandmother) is a twin and my great-great grandmother is a twin. My great-great grandmother has 3 sets of a twins. Since twins obviously run in my family, is there a good chance I'll have twins myself?