Signs of labor?

Juli
So has anyone who has given birth before had some kind of signs that labor is near besides having their water break/ contractions? 
Lately I've been having really soft poop (tmi sorry) but I heard diarrhea was common before labor? It's not diarrhea but really soft, and then I've been having random pains in my stomach and in my back. And my belly gets really hard, I never really time them though. 
But if anyone knows any signs of labor coming near/ ways to induce labor please lmk 😁😁