Naming baby after great great grandmother, which is also my middle name

I have my great grandmother's name, Leah, as a middle name. I really like the name but obviously I have never ever been called Leah, I'm always called by my first name. I'm currently pregnant and thinking of potential names. According to Jewish naming conventions, would naming the baby Leah be considered naming her after myself or after her great great grandmother? Is the name "allowed" or not?