How am I 3 cm dilated and not in pain?

At my last appointment yesterday, they said I’m 3 cm dilated and 50% effaced. I am not in any pain?!

With my first, my water broke and I wasn’t progressing so they induced me. After 24 hours I was at 4 cm and in excruciating pain from contractions and had an epidural

Why doesn’t 3 cm hurt now?! I’m just at home waiting for labor to start. I’m 39 weeks and due date is on Friday