thanks ladies and gentleman!
MDAO: it's a very long story, but i experienced cervical stenosis a couple of years ago at which time my cervix had to be forcefully dilated. during the dilation procedure they noted that i had an unusually short cervix (during dilation the doc actually perforated my uterus!) and mentioned at the time i'd need to be monitored if and when i became pregnant. honestly, i'm not sure how much she could really tell during the dilation procedure due to the perforation.
further, my high-risk doc said that it's possible that my cervix was at a different angle or the tech at my OB's office measured incorrectly at 7 weeks (2.5-2.9 cm). i love my OB, but since my visit with the high-risk doc, i wonder if she's a smidge overly-cautious... which i suppose is good when you're talking about babies

but has made us worry seemingly needlessly.
either way, the high risk doc felt very sure he got the correct measurement yesterday at 9 weeks (4.21 cm). as of now everything is thankfully, normal. though the more cerclage stories i hear, instills confidence that if it is something i must do, all will be okay.

thank you for sharing your wifey's cerclage story; i actually thought of you both when i was researching the procedure because it seems pretty common with multiples.
my thoughts are with you and yours, MDAO. it sounds like a VERY exciting time for your brood right now.