I guess my opinion is the minority one, but I think you should be totally happy. If that means getting the ring re-designed then so be it. I would hope that your DF would want you to love your E-ring as he will expect that you will want to wear it all the time.
I had my ring completely rebuilt around my centre stone about 9 months after we got engaged and I don't regret it for a minute. I spoke up right away (maybe too quickly) and said that I didn't feel the ring reflected me and my style. We went back to the original jeweller to tweak the design, but she really wasn't receptive to any ideas and just kept telling me that I should live with the style. I felt that because I had a distinctive stone (cushion cut) she thought I should have a "cookie cutter" setting. Eventually it became a real sticking point between us and I stopped wearing my E-ring entirely. Finally a friend of mine took me to her jewellers to get me to stop complaining, I told them 3 simple things and the first design they came up with brought tears to my eyes.
OP, I would really think about the turmoil that you may cause by changing the ring so quickly. Not every man will love the idea of you getting an entirely new ring and many will feel insulted by it. I was fortunate that my DF (now DH) just wanted me to be happy no matter what that meant. The vast majority of the opinions I received was that my ring was beautiful and that I was ungrateful. I was even told that I should just be happy to have received a diamond and to have found a man who was willing to marry such a difficult woman. I would wait and see if your desire for a new setting and stone is a passing fancy or if you really feel that a new ring will reflect "you".
Good luck!
Aw! I'm happy you got what you wanted - that's what any girl who cares about this stuff really wants. And truly, that's all a man who loves his DF wants too. Did you really say something right there on the spot? I feel like I've had 2 months to think about it and still don't love it. I tried!!
I'm sure it's a really scary thing to do on your own, but if you don't put feelers out there or ask friends (not mothers! thats what happened to me. my mom got what *she* wanted - if you guys only knew...) sometimes these misunderstandings happen.