Morning mezuman :(

A mezuman is the three-adult (in traditional circles, three-male-adult) minimum required for reciting the "zimun" (invitation?) to say Birkat HaMazon/Grace after Meals. My husband has taken to calling our Mon. and Thurs. morning services at synagogue the "morning mezuman" because, even though we count women, we haven't had a minyan since before last Pesach/Passover, to the best of my recollection. It's an old story, but still a sad one.