Feeling stupid (Is this early labor?)

Im 39 weeks 3 days and woke up with bad cramping. I feel dumb but i have no clue if this is a sign of labor or not😞. I just had my son 12 months ago i thought ide know but i honestly don't. Im just waiting till im crying in pain lol. Anybody else go in labor without having a bloody show? Thats sort of whats making me think its just cramping. Last time i had a bloody show n was crying it hurt so bad and sure enough i was in labor. I don't remember the pain tho...