Sorry to hear about your loss.

With my two MC I started to bleed when my period was due. This is how I actually know that there were problems in the first place.
My first MC stopped growing at 4weeks and 4 days but I carried until 9 weeks and my second stopped at 5weeks and 3 days amd I carried until 8 weeks.

From what I have been told most places do not do a D&C if you are under 10 weeks in development because the body usually self aborts.

Nae x