I was wondering how unusual it is to have a litter be all males. My calico cat had a litter about 7 weeks ago, and up until recently I wasn't sure what they were... Now it seems that we had all males. I thought that was odd but was wondering what the chances were that a litter would be all male or all female... There are six kittens.. there were seven but one died... not sure what that one was... any input will be appreciated. thanks