Kaiser kept me when I was 4 cm.

I was admitted at 4cm but most places it's usually 5

doctors have seemed to very. from my experiences with friends and family. some doctors will admit you after your water breaks because they consider it a infection control problem. others wait for a specific dilation and will send you back home if your water's broke but you haven't progressed (dilated) enough.

im 3.5 cenimeter

here they keep you at 4cm