hi my name is sarah and i have my first female kitten. i am concerned becuse i thought for heat the cat would bleed but mine has not acted ANY differently to make me think she has had a heat. i also have a male and now my female is starting to get paunchy and i have noticed her nipples coming through- to be 6. my largest concern is she is only 5 months old and was to be spayed on the 28thof this month. is she too young? are the nipples a sign of pending heat or she pregnant?