Sending a Follow up Email to HR Manager

Hi everyone,

I recently had a phone interview with a mutual fund company and thought it went very well. The conversation lasted for nearly a half hour and I learned a lot about the structure of the program I am applying for. I was told that I would be contacted within the next week by another manager in the company, but I did not hear anything. After not hearing anything for two and a half weeks, I sent a follow up email to remind the HR manager that I'm still interested in the position and that I enjoyed our conversation. I have yet to receive an email back since that email was sent (roughly a week ago). Did I send the email prematurely and should I consider myself rejected?

Any input is greatly appreciated =]