How old do cats usually have kittens?

If well fed, a female cat will give birth to kittens as long as she is sexually mature and in estrus for six months, but the veterinarian will advise you not to breed for the first time when she is in estrus, because a six-month-old cat is too young to be physically mature or psychologically mature and lacks the necessary self-awareness.

My kitten is in estrus for six months and was born in March this year. It stands to reason that my cat was not so early and was lazy before giving birth, but this time this one was too young to know that he was pregnant, and he kept jumping up and down before giving birth, and finally he was born in the chase with the little male cat, so the family photo that our family had been looking forward to for several months fell through. It's dystocia Stop talking.