Anyone else with a short cervix?

Ro • Surprise excited!! Enjoying my 1st pregnancy due to be blessed with the best of both 🌎's... B/G twins 💙💗!!!
I went to the doctors yesterday as I am now 21 weeks today & learned that my cervix is shorter than expected. I'm pregnant with twins and my cervix is a little over 2 centimeters. My doctor has taken me out of work for a week starting today. I hoped to work as much as I could before the babies came July and definitely didn't plan to be taking days so soon. Any advice or anyone who has experienced this...what did you do and did it work? I really do not want to go into pre-term labor 😔