Girls, hello. Who has experienced preterm labor? How is your pregnancy…

Girls, hello. Who has experienced preterm labor? How is your pregnancy going? Please share your experience. In my previous pregnancy at 21 weeks, water broke. At 16 weeks, they stitched me up and put in a pessary. It seemed like everything calmed down. Today at the ultrasound, there was low placenta and an internal opening of the cervix by 1 cm. Now again, I'm starting to be afraid that I won't carry the baby.