Hello. I am new to the site. I am here on behalf of a friend. Her cat gave birth on March 27th of this year. She and the kittens live outdoors. There has been a Tom cat showing interest in the mother cat in the past few days. My friend is wondering if it is too late to isolate the mother. She had been planning to spay mother after weaning the kittens. She didn't realize the cat could go into heat so soon. How soon will she know if the cat is pregnant again? I have been told the cat shouldn't be spayed before weaning her kittens and drying up the milk. Is my friend likely to be in for a second litter and immediate isolation before her cat can finally be spayed? What would you do in this situation? Thank you for your help!