I've been told that your cervix remains about 1-2cm open if you've already had babies (that's what I was told when I was pregnant with DD).

They never suggest you check your own cervix, when I was in hospital with threatened PTL at 22 weeks this pregnancy and with DD, they wouldn't even touch the cervix in there, and they were midwives and OBs. They say that it can introduce bacteria too early in and stimulate labour, and that early is a very very bad thing. They used one of those instruments to kind of hold things open down there and then shone a light in to look at the cervix rather than feel it.

If you are feeling like this, I'd definately go straight into your delivery suite or emergency....did you see an OB when you went in?