miscarriage

My doctor told me on Thursday a miscarriage was inevitable. At 6 weeks they saw nothing but the gestational sack, same as at 5 weeks. My progesterone was 10.6 and a week later 10.2, and my HcG was in normal ranges but doubling on the slower side, every 72 hours. I'm terrified to leave the house now because I'm afraid I'll be out somewhere and it will start and I'll be in pain and bleeding a ton. Any one who has been though this what can I expect?