Pinching sensation in cervix area ? 37w5d

Michelle • Married to love of my life & mother of 2 precious baby girls 💕🙏🏼
So it's not lightening crotch... I've experienced plenty of that thus far.. but it's mainly when I'm walking , I get a pinching sensation, and I feel like I have to cross my legs .. almost like my water is about to break ? I don't know what to think . 
Any moms that have already had their baby experience this soon before labor began?