Ay, I think you're asking about the progesterone pessary or suppository na ginagamit para maiwasan ang early opening ng cervix? Hindi ko pa personally na-try yan, but a few of my mum friends who had a history of miscarriage or preterm labor were prescribed something similar by their OB, some swore it helped them carry longer. Kailangan talaga na i-discuss with your doctor kung yun ang best option for your situation kasi it really depends sa your medical history and kung ano ang nakikita nila during your check-ups. Let me know kung ano ang sinabi ng OB mo!