Generally, a four-month-old kitten will not get pregnant. This is because a four-month-old kitten's reproductive system is not yet fully developed, and it has not yet reached its estrus cycle; its body will not release eggs, and pregnancy is not possible. Pet owners are advised to protect their four-month-old kittens and prevent them from mating at this age, as their bodies are still very fragile, and forced mating may cause physical harm. 
How to feed a 4-month-old kitten:
1. Kittens at this stage should be fed kitten food, which has high nutritional value and can meet the nutritional needs of kittens during their growth.
2. During this stage, it is necessary to perform internal and external deworming treatments every month to prevent cats from being infected with parasites.
3. Cats need calcium supplements to promote bone growth. You can feed them calcium-rich foods, such as dried shrimp.
4. Kittens at 4 months old are relatively fragile. Do not feed them too much or too varied food, as this may cause adverse reactions such as vomiting and diarrhea due to their inability to adapt.