Contractions?

Diane

I feel really dumb even asking this question, but how do contractions feel? Im a first time mom and I’m 38+5 and everyone keeps asking if I’ve had any contractions and I’m really not sure if i have? I have had tightening in my stomach and the top will get hard but its not really painful so I’m not sure if that’s just the baby curling up? So I’m not sure if I should time or not? So frustrating! Just ready to have my baby girl!