Contractions

Hi! Knina pong 11am ngstart mgcontract tummy ko. Sobra sakit naninigas pero tolerable kasi nawawala sya every 5-10 minutes . Then nkatulog ako now 5pm na pasulpot sulpot ung contractions. Msakit din ung pempem part ang back. Labor nb to? 39 weeks nko today but no mucus discharge pa.