Hip pain?

Leighandra Paige
The past two days, my hips feel like they're being pushed apart. I'm not sure what's causing it. CD 122. I don't think I'm pregnant because I've had negative tests for awhile now, including negative blood about 2 weeks ago and a negative hpt this morning. I also just finished my last  day of my Provera.
Anyone have any ideas what could be going on?