I just went through my 2nd second trimester miscarriage at 14 weeks. 3 Months before I lost in February at the end of 21 weeks. No problem with the baby but my cervix just flops open and that's it. Now for future pregnancies I have to have a cerclage but I'm still worried. 23 years old Hyperthyroid but never was the cause for the miscarriage and is mild so far. Has anyone experience second trimester loss? And/or had a cerclage?