Cervical Pessary vs. Vaginal Progesterone for Preventing Premature Birth in IVF Twin Pregnancies

Arabin (cervical pessary) will be inserted at 16-22 weeks and removed at 36 weeks of pregnancy or in case of premature rupture of membranes, signs of preterm labour or patient severe discomfort

Vaginal progesterone (Cyclogest 400 mg) once a day will be used, from 16-22 to 36 weeks of pregnancy or in case of premature rupture of membranes, signs of preterm labour or patient severe discomfort