Hi , my cervical length at 8 weeks is 3 cm , and reduced to 2.9 cm at 20 weeks, 2.7 cm at 26 weeks . my doctor identified as short cervix at 26 weeks and said it's too late to do cerclage stitch , she recommended bed rest and progesterone and also made me panic of preterm labour, for second opinion I went to other , she said 2.7 cm isn't too small , asked to continue progesterone medicine daily with no bed rest . I took growth scan again at 29 weeks at 2nd doctor, but cervical length isn't mentioned in reports, doctor said, at this point of weeks , we don't look at those cervical lengths and nothing can stop if labour pains start , so she said no need bed rest & everything is fine & just continue progesterone medicine. I'm worried of preterm labour . I'm entering into 30 th week in two days , don't know cervical length right now, reaching which week it's safe to deliver ? Give some clarity about my issue .