Why is my cat nervous and aggressive with kittens after giving birth?

She’s probably coming into heat again and that’s why he’s after her. I recommend spaying her when the kittens are weaned. Once she’s no longer cycling this behavior should improve. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for your cats.

She is likely to become more protective when the new born kittens arrive and it is unlikely she will become more accepting of the older kittens at this stage. Ensure she has a quiet area to have the new kittens undisturbed y other cats (including her previous offspring)

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear about this troubling situation. I would advise immediately re-homing this kitten since she is obviously not a good fit for your life. I think it's important to get the kitten into a better situation before she gets hurt or causes more problems for you. I would contact your friends, family, or anyone you can think of to help re-home Lovely. Good luck

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach! This could be a behavioral change due to the hormonal changes in her body right now from the pregnancy. However, this could be her expressing her discomfort if she is not feeling well. I would recommend having a veterinarian examine her and have her blood tested to see if there are any abnormalities that need to be addressed. I hope this helps! Please let me know if you have any further questions and I would be glad to help you further. I am also available via phone or text consultation if needed.

Changes in the social structure in a household like this can be very stressful for cats. They are not a very social species by nature, and it's often very hard for them to accept "newcomers" - even if these are her sister's kittens. I would recommend making sure that the aggressive cat has her own area where she can get away completely from the kittens and your other cat whenever she wants to - this should be a comfortable room with a litter box, food and water bowls, a cat tree or other resting spot, etc. This way, she can be on her own if she prefers to, but can still come out an interact with the other cat and her kittens if she chooses. Feliway diffusers in the areas where she spends most of her time may also help to reduce her stress. It may take her weeks, months, or even longer to adjust, so be patient - some cats never really adjust, unfortunately, and may need to be kept in separate areas of the house to keep everyone happy.

Cats are not naturally sociable and it is not uncommon for mothers to reject the kittens beyond puberty. It may ve worth considering segregation to different parts of the house or even rehoming one if very aggressive.. Pheromone products and calming diets or supplements can help in less severe cases

Hello. Laney's reaction to her kittens is pretty normal for a cat as they do not form very deep bonds with their offspring. However, the change in personality & weight loss is very concerning. There are multiple things that could be happening, from infectious to inflammatory conditions, so it is best to have her evaluated at your earliest convenience by your veterinarian. We need to rule out that there are no infectious conditions going on that could impact the kittens as well. I hope she is doing better soon & thanks for using Petco Pet Education Center, formerly Petcoach.