I am currently 30 weeks pregnant with a healthy baby boy and had my McDonald cerclage placed at 14 weeks. My OB who is an absolute angel, put 1 suture up high in my cervix, and also 1 suture down low. Although being on modified bedrest for the past 4 months hasn't been easy, the wonderful aspect is that since I became pregnant, my cervix has remained practically unchanged--4.9cm (49mm) long, with no shortening or thinning out. In my previous pregnancy with my daughter at 22 weeks, I presented with incompetent cervix being 4cm dilated, bulging bag of water.
I have gone in to see my OB every 1 or 2 weeks and now only have to have a vaginal ultrasound every 3-4 weeks to check the cervical length. I have also been on HUAM with Matria Healthcare and whenever I feel symptomatic or have four or more contractions per hour, I take a brethine. So far so good.
I had a c-section for my son's birth due to cephalopelvic disproportion--too big to get through my pelvis, so my doctor is leaving in my cerclage and removing it when he does the c-section at 38 weeks.
I hope my story helps anyone else out there who may be going through this also.