tablet. Progesterone is a hormone of pregnancy
, so for maintaining pregnancy it is usually given for 10 - 12 weeks of gestation after which placenta takes care of indigenous progesterone production. Since you are high risk pregnancy, your doctor may have prescribed Utrogestan which is safe in pregnancy, for taking till 28th weeks of GA it is not needed rather than not recommended. Kindly follow your Gync advise on this matter.