Sayang, ini memang sensitive situation, please please see your doctor or specialist asap kalau belum detailed discuss pasal cervical length ni, okay? 22 weeks dengan twins and short cervix kena close monitoring je by your doctor. A few of us mums who went through pregnancy complications, what really helped was follow doctor's instructions exactly, whether it's bed rest, progesterone, or cervical cerclage, different for setiap orang depending on their case. Honestly the best thing is trust your specialist and ask them specific questions pasal your risk factors and what you can do. Jangan stress too much (I know easier said than done!), but focus on what your medical team says. Sending you all the good thoughts, twin pregnancies are already special, you got this!