Short cervix

I don't think there's anything you can do at home to change the size of your cervix. I've found online ways to ripen the cervix for labor and delivery but that's not what you want to do at 21 weeks, and I don't know if that's necessarily what you are looking for. Sorry to not be of any more help.

Thank you, my doctor prescribed medication for now.. hope it will work.

I hope it works for you and you have a healthy pregnancy and baby ❤️