A 32-week-pregnant woman with a history of two previous mid-trimester aboions presents with regular contraction of the uterus. The cervix is 2 cm dilated. All the following are done except

Circlage operation - the operation should be done around 14 weeks of pregnancy or at least two weeks earlier than the lowest period of previous wastage, as early as the 10th weeks Second-trimester aboion - mostly due to cervical incompetence.