Mysterious cramping

Before you read on, I warm that I talk about my vaginal discharge in slight detail.

So I got my period twice within a two week span, both lasted about 5 days each. one at the end of Feb, the other the beginning of March. I started cramping pretty bad on March 20th, and it's been going on and off, mostly on, since then. My period (according to eve) isn't supposed to come for another 10 days. I've never had cramping like this before my period, not this far away from it anyways. I've also been having a thick stringy white discharge, along with a white almost watery discharge. I haven't yet taken a pregnancy test, but I do have one. Me and my fiance use the pull out method. yes I know it isn't effective against pregnancy, it's by choice on both parties.

Should I take the pregnancy test?

Could it be something else?