No, they're too similar sounding.
I prefer
Jenna over
Emma despite the fact that my name is
Emma, because
Emma is so common.
For middle names for
Jenna... (the
bold ones are my favourites)
Jenna MariaJenna MeredithJenna GraceJenna MayJenna CharlotteJenna VioletJenna Helena (pronounced Heh-LAY-nuh)
Jenna AshlynnJenna Danielle