Girls, hi ?? Can you tell me, I had a second ultrasound, they diagnose…

Girls, hi ?? Can you tell me, I had a second ultrasound, they diagnosed me with cervical insufficiency, short cervix, prescribed candles, in two weeks again to the doctor, can you tell me how dangerous it is? Has anyone had this diagnosis, did they reach term? They say that up to 36 weeks is possible. (I'm ready to hear any stories) The doctor didn't say anything much, explained that it's not scary, but I already read so much about it. And today suddenly got a sharp pain in my lower abdomen, straight awful cutting pain, literally a minute and it went away, is it somehow related?