Quoting Nessa!:" These are painful contractions, so I doubt there bh.. Plus the docs say there contractions. So i dunno"
Bh ARE contractions. And they can be quite painful at the end of pregnancy. I had a lot of painful BH when I was 35 weeks onwards.
You can have these contractions for a while. It's a good idea to labor at home, where you can move around and eat and such.