A 33 year old pregnant woman G3P2L0 presents at 9 weeks gestational age . She has a history of conization for CIN one year back & currently is on follow up. She also has the history of preterm bihs at 30 and 32 weeks during her last 2 pregnancies. What is the best step in the management of this patient?
USG to see cervical length & decide next management Apply Cervical Cerclage by 12 weeks Complete bed rest till bility is achieved Provide low dose Tocolysis with salbutamol till bility