Wa'alaikumassalam warahmatullahi wabarakatuh, sayang. Aih, I can imagine berapa sedih you must be feeling right now, first baby, first time through something scary macam ni. Honestly, questions about whether the sac will return to normal size is really something only your doctor can answer based on what they see in the scans, so trust the process lah and go for that repeat scan next week, that's the real answer you need. What I can say is, a few of us mum friends went through bleeding in early pregnancy and the doctors' instructions (bed rest, the meds, everything), you just follow through exactly as told. You're doing everything right already, okay? MC 10 days, rest, take your meds on time. That's all you can do now, and sometimes that's enough. This is a tough test, tapi you're strong. Keep that repeat scan appointment and see what Allah shows you then. Sending you so much strength.