Thanks for the info. If I raise my concern to my gynae, he will normally just brush me off and ask me don't think so much cos sometimes is not up to us to prevent also. Guess is only the one up there that has the final say.U/S can see but of course internal scan is more accurate. About scarring I think quite subjective, sometimes adhesion takes a while to form. I had a friend suddenly had pains on her lower abdomen recently, after some checks then know its adhesion from her appendix 4 yrs ago. Usually, after d&c scan, gynae just want to ensure no debris, if not they may cause infection or even form cyst if they did not pass out with AF.
My second pregnancy was put on support too, but still end up in mc. I knew right from the start, cos pregnancy kits all show very faint line, hardly increase. Gynae said it was a unhealthy one.