Here's why it's so hard to tell:
* Tiny size: The external genitalia are still very small and underdeveloped.
* Similar appearance: Male and female kittens can look very alike at this age.
What to do:
* Wait: The best way to determine the sex of a kitten is to wait until they are a bit older, around 6-8 weeks. By then, the genitalia will be more developed and easier to identify.
* Consult a vet: Your veterinarian can easily determine the sex of your kitten during a routine checkup.
Remember: It's best to avoid handling kittens too much in the first few weeks of life, as they are very vulnerable.