I love
Jessamine. I loved
Jessie on its own but then decided it was too nickname-ish. So I was looking for a full form.
Jessa sounded a bit harsh and
Jessica is way overused. So I decided on
Jessamine. I pronounce it JESS-uh-min, not JESS-uh-meen and I definitely prefer
Jessamine. It looks more elegant and feminine.
Jessamine is awesome and even better because it's a family name for you as well.