Braxton hicks and mild cramping.

Robin • 35, FTM, due sept 2015
I've had pretty regular Braxton hicks contractions over the last few weeks on and off. They're not painful or consistent so I have been really concerned. The last three days they've been accompanied by mild, period like cramping. Has anyone else experienced this or have any insight? I still feel the baby moving around a lot and it's possible her head could be working its way down and causing the discomfort. I don't think it's labor, but this is my first so what do I know!?