At 30 weeks of pregnancy, a short cervix (2.38 cm) with internal opening and funnelling suggests a risk of preterm labour, and the management you have been advised, reduced activity/modified bed rest along with progesterone support using Proluton Depot weekly and Endogest daily, is commonly used and considered appropriate to help relax the uterus and reduce the risk of early delivery. It is important to follow your doctor's advice closely, avoid heavy work or long standing, stay well hydrated, and attend regular follow-ups to monitor your condition. Watch for warning signs like lower abdominal pain, tightening of the uterus, vaginal discharge or leaking fluid, and report them immediately. Your care plan may be adjusted based on how you progress, but overall, this is a standard and reasonable approach for your situation.