What is going on with me!?

Last Friday at my OB appt I was 1cm dilated & 80% thinned. My doctor said I may not last a week. Well, as the day went on, I ended up losing my mucous plug, and was having lower back cramps. Come to find out, I was having contractions. I went to the hospital and they got to be 4 minutes apart. I got sent home because I wouldn't dilate past a 1. Well, ever since I left the hospital I have contractions EVERY DAY. They just aren't regular. So I have contractions every day. 
What is going on? When will I go into labor!? 😩 someone help.