Misoprostol-missed miscarriage

Al

I recently had a missed miscarriage and was given misoprostol to ‘clean me out.’ However, it didn’t work the first time and I did it a day later. I had an ultrasound this morning and although the sac was out, the lining was still thick. She is going to check again on Monday, but if it’s still too thick, I have to take it again. Has anyone gone through this before? Any advice or thoughts?