Early sign of labor?

38 weeks and have been very crampy/increase in Braxton Hicks the last 2 days. Been loosing chunks of mucus plug for awhile now too. Dtd with hubby last night around 9. Woke up around 11:30 with cramping and belly tightening. Since then I have literally been waking up like every hour to my stomach feeling super crampy and my right hip is hurting. I haven’t tried to time anything yet since they are not extremely painful but now (5:30am) I can’t sleep because of the crampy feeling. I think I might get up and bounce on yoga ball. Could this be early labor? Anyone else feeling like this?