Is it possible for beginning/early stages of labor to be more of a constant pain? I've had terrible…

Is it possible for beginning/early stages of labor to be more of a constant pain? I've had terrible sharp/cramp like pain right above my pubic bone and back all day, with waves of it getting worse. I've had tightening as well, but kind of hard to time with the bad pain being constant. Also in the past couple of hours I've started to have lotsss of pressure down below and sharp pains in my butt. 😳