Hi and Welcome to Mothering!
It sounds like you may be getting ready to ovulate or are ovulating. Thicker white creamy discharge is usually pretty fertile and based your period days you would be on CD 13.
A low pain could just be moving wrong or it could also be an ovulation pain. Have you checked out the Book "Taking Charge of Your Fertility"? It has lots of good info in it. As well as the many smart moms on here!
Sounds to me like ovulation...sometimes you get a little twinge in the ovary, and even a little spotting around that time.
As Delighted Butterfly said, definitely read "Taking Charge of Your Fertility" - my midwife loaned me that one, it's amazing! Should be required reading in every high school sex ed class! You can start charting your cycle (if you didn't conceive this time around) and try again next cycle. Good luck TTC!