38weeks and FTM

Mga mi sign of labor na rin ba yung puro contractions lang pero Wala pang any bloody discharge? Yung pain nasa puson paikot Ng lower back. 1cm na Rin last check up last week. Yung tagal din is medyo irregular pa like more than 30mins pa Naman interval. (Not as is) Possible bang mag active labor Ng di pumuputok panubigan or mucus plug? Sana may sumagot please mga mi.