I know of a female who came in heat 5 months after her last heat and another who came in heat 5 months after her pups were born. Usually it is 6 months. I have a 3.8# female who is 9 1/2 months old and she hasn't come in heat yet. Ok, by me. My oldest female didn't come in heat until she was 13 months old and a little over 6#. With the smaller ones it kind of makes sense that it would take longer for them to mature. With my older one I think it had something to do with her first 5 months before I got her and I think she was malnourished. |