spears100411_01_X17230WM.jpgBritney Spears denied boyfriend Jason Trawick's proposal on her 30th birthday, according to In Touch Weekly.

A source close to the pop star and Trawick, 39, tells the mag:

    Jason got down on one knee and asked. Britney panicked and said she needed time to think.

Brit's beau had originally planned to pop the question on Christmas, but instead, decided that a proposal on her December 2nd birthday would be best. Trawick even showed Britney the ring, according to ITW. Guess it wasn't the right time!

She wont rush into anything without giving it a lot of thought," adds the source.

Christmas is almost a week away, so perhaps Brit will be an engaged woman soon enough!