Any thoughts/guesses of how soon I might go into labor?!

I'll be 37 weeks pregnant on Thursday, and at 35 weeks 5 days, I was 2.5cm dilated and 75% effaced. I started losing my mucus plug on Thursday at 36 weeks, and lost the majority of it yesterday. Any mommas have any experience like this with past pregnancies? I'm wondering how soon I might be going into labor. I know it could be any time, but wondering what others experience has been like. I had contractions every 1.5-6 minutes apart on Saturday for 6 hours, so we went into L&D but I wasn't progressing fast enough, so they sent me home.