Hmmm.. I am by no means an expert...LOL this is only my second month charting....but.....I would say any time you see fertile CM there is a chance it could be O time (unless it's right before AF) so I would BD just incase.
I don't think I Oed for the first month after my m/c and I am pretty sure I didn't the month after that either.
I know they say some people are very fertile the couple weeks after m/c. Hopefully that is the case for you
LOTS of BFP dust to you!