It's not about individual anecdotes, it's about probabilities and actuarial risks.
A woman who gets pregnant at 25 is less likely to have issues than a woman who gets pregnant at 35 and much less likely to have issues than a woman who gets pregnant at 45.
That's the reality.
The fact that some women have successful pregnancies at 45 doesn't change it. Nor does it suggest that women should simply ignore the facts and hope for the best.
Some drivers make successful journeys while drunk, without killing themselves or anyone else. That doesn't mean drunk driving is a recommended personal choice, or that the element of choice somehow makes the risks disappear, or that drunk drivers who happen to beat the odds and survive many journeys should be sharing their lifestyle choices with others.