Cookie, women generally don't ovulate during the first 6 months of bfing, provided they are bfing exclusively (no formula or solids), and are feeding at least once during the night. If it is after the first 6 months, if bfing is not exclusive or if baby is sleeping through the night, then you might or might not ovulate, it is different for everyone.

I am not an expert on CM, but I think you can have CM and changes in CM while bfing without ovulating. If you are not getting AF, then you are most likely not ovulating, and if you are getting AF you probably are.