I do understand the curiosity though as I've had it and I can vouch for being deflated when an internal revealed I was 1cm at 39 weeks, especially after a stack of strong BH's.
I asked for a S&S to which to OB obliged and it hurt like the blazers (I mean really hurt) and didn't do anything anyway but stain my knickers on the way home as it dislodged a bit of show.