Am i in labor?

Today its 2:33am. And i am exactly 36weeks. I lost some of my mucus plug yesterday around 7:30pm. I started having light pain around 8pm but didnt start tracking my contractions till 9:10pm. They were 5min apart lasting 3min. I tracked them for an hour. All coming back 5min apart lasting 3min so i went to sleep. Just woke up and its now 2:33am and i still having pains pelvis pressure and lower back pain. What does this mean??