Dilated 2cm how long can that go on before birth?

Ok ladies I'm due the 27th of November at my check up yesterday the doctor said I was 2cm dilated and 75% effaced so my question is how long is it possible to stay 2cm dilated? I was actually hoping I would go over due because the baby's father won't be home till December 1st and I really wanted him to be there for the birth but know I'm thinking that's not going to happen 😓