Cramping?

37w3d..So I've been losing a lot of chunky mucous (sorry lol) lately and I've been having cramping. It doesn't come from my lower back, just the front, like period cramps. They hurt but are tolerable. Last night they went away with changing positions which I know are Braxton hicks but tonight they don't seem to be changing. I felt off all day, sudden burst of energy then extremely tired. Baby has been active so I'm not worried about him but he is measuring ahead... my question is, is my water breaking and bloody show the two definitive ways to know I'm going into labour? Is this just false labour?