Upset stomach before labor?

Vanessa • FTM. Married for 3 years and expecting a baby boy. Life is good.
So I will be 37 week on Saturday and starting yesterday I've had upset stomach. I had it twice yesterday and 4 times so far today. I've read that having upset stomach means labor is imminent and it's considered a part of early labor. I've also read statements from some women saying they had it a week or two before labor. Just wondering how long I'm going to have to put up with this and if it means baby might be coming early.