Just curious to see what other twin moms cervix's are measuring at and when?  Currently 25 weeks +3 and at last ultrasound at hospital it was measuring at 3.1cm and that was an abdominal ultrasound.  At 23 weeks at HR dr with vaginal ultrasound it measured at 4.3cm.  I know with every different tech it can be different and vaginally is more accurate then abdominally, but just curious where others are measuring?