At what point does active labor kick in?

Cindy

I know everyone and every pregnancy is different. But I’m wondering at what point your body would stop with the gradual dialation and effacement and active labor would kick in.. I’ve heard of people walking around at 5cm for weeks before going into labor but then I’ve also been reading about people having real contractions at 1cm. Thoughts?

I’m 3.5cm and 50% effaced as of today.