36weeks and 2cm open

So i went in to check out a uncomfortable feeling i was having near my rib and once im put on monitor to check if im having contraction , turns out i am and that im 2cm open , they hydrated me and was told i stopped opening

Could i continue to open?

Is it too early ?

How long can i stay at 2cm ?

Last friday i was closed and now im at 2cm

Was told my cervix is soft , but im not sure if that makes a difference ?

This is my first pregnancy.