Cerclage

Hi. I hope you can share your story nung nagpa cerclage ka. I am experiencing 11.7mm funneling, 54mm cervical length based sa result ng transv ko today and now at 15 weeks. Sa Wed pa ang appointment ko sa OB but I am already researching about cerclage. Paano ang ginawa sayo and is it painful? Just incase lang na sabihin ng OB ko na kailangan ko din.