And as a result of these contractions, that fetus, the head of the fetus, begins to position and begins to move towards the cervix. So remember, the cervix is that section between the uterus and the tract of the vagina. What also happens is the cervix is normally very rigid. And what happens is it begins to relax, it dilates and it flattens out. And this is important because that is essentially what allows the head of that fetus to make its way into the tract of the vagina. Now, eventually, towards the end of stage one, we have the amnion that ruptures.