All of the -ayden names are really, really overused in our area (there are 3 -ayden variations in my son's preschool class of 12). Jaydra seems like a made up name to me, and I'm not a fan of made-up names.
You've gotten some lovely suggestions above, if you're really wanting a J name.
Of course, it's your baby, and what you love is what matters.
ETA Adelyn is a nice choice
