Doctors today (: I was dilated to a 2+, thinned and baby's head was station at a -1. I'm super…

Doctors today (: I was dilated to a 2+, thinned and baby's head was station at a -1. I'm super ready. I have a inducement scheduled for May 19th ♡ however, what does she mean thinned ? like is that a term for effacement?