A woman in my pregnant swim class is 33 weeks and starting to efface. Her birth center midwives got concerned and gave her a test to see if she'd be in labor within two weeks. She didn't remember what the test is called, but has anyone heard of this? Sounds screwy to me, but what do I know. Plus, I didn't know effacement was such a huge concern. I've only checked myself, and I'm pretty sure I'm a good deal effaced, but whatever, you know?