I am 27 week pregnant during my 1st trimester doc gave me progesterone because always I had pain like periods n menstrual cramp. Later I always had lower abdominal pain and at 18 weeks I had done anomaly scan in that my cervix length was 3.0 cm doc advised me take tidilan retard tablet to avoid risk of early pregnancy. After that I came to mom's place for delivery at 5 month. Here I consulted gyaenic she checked all my reports n advised to take ecosprin tablet after taking the tablet I had gas problem so I stopped and during my 25th week done my ultrasound in that cephalic presentation is seen and cervix length is 4.6 cm again I had pain in abdomen doctor gave me progesterone for a month. I am having thyroid since 2 years taking 100 mg dose and during first trimester my bp increased so am taking alphadopa twice a day. Now I want to know whether cervix length will increase? Asa I know cervix length will decrease when baby grows but in my 18 week scan it showed 3.0 now in 25 week report it's 4.6 cm.