Short cervix at 24 weeks

FTM here Just went to my monthly gynae checkup and I inform gynae that I did feel a slight period cramp like for 3 sec on off for 1 hour last night but today I don’t feel any cramp anymore. Doc suggested I go for trans vaginal scan and report shown that my cervix length is at 2cm, and doc gave me 2 choice, to take vaginal medication or perform cervical cerclage. Decided on the medication due to could be risk on cerclage. Had to go back next week for another scan again. does any mummy experience this? I’m so worried that doc mention I may have the chances of pre term labour as I am only 24 weeks in 😭 Does this mean I can’t even move about? Or even travel? #firsttimemom #advicepls #firstbaby