contraction or baby getting comfortable

Jessie

37.2 weeks. 3-4 cm dilated and 70% effaced as of yesterday. I feel this hardening on my stomach, usually upper where it feels like he's pushing his whole butt up against me. lots of pressure but not really painful. lasts a few seconds but it's not a kick. I didn't have contractions with my first until I delivered him so this is still new. thanks