So I have a 1 1/2yr cat that I have neglected to spade-very unusual for me, as I have had all 4 of my other pets S/N by 4-5mths!! She is indoors & out. It is a very cold Iowa winter, all the family has been commenting on how 'fat' she looks- I've been saying her hair is thick. Then I noticed that the nipples 'she has never had' are there & where I pick her up under her rib cage,I can't anymore because of a pear sized buldge--?? Kitties?? The only odd thing I remember, is that about a month or so ago, she was gone longer than 24hrs & I was concerned. She came back filthy & reeked like a bunch of cats peed ON HER. I don't know if that's significant to any mating rituals or what. I would guess I have a early pg cat- what are your thoughts & should I take her to the vet??