I am no mother and likely will never be, but I am assuming it depends on the mother's circumstances. My mother was 29 when I was born. When it comes to things like breast cancer, they say it is best to have a baby before the age of 30. I am already passed the age of 30.
According to iyoni app knowledge base:" For this reason (aging of ovarian reserve), it is considered that the optimal time to get pregnant is between 20 and 35 years of age" .