I didn’t say that. The risk of birth complications rises with age. A woman’s womb takes about 3 years to replenish all of the important nutrients for a healthy baby. This has been proven scientifically. If you look at a baby that is born a year after another baby, the second baby is less healthy because the first baby utilized most of the resources of the womb. People don’t notice the differences because they think it’s genetic but it’s not really true. Things like height, jaw sharpness, and intelligence are affected by the womb. Ideally, if you want 5 or more babies, it’s not practical to do with a 30 year old woman. The 3rd baby will happen at the age of 39 if you want to wait 3 years between babies. I might not even be able to have a fourth baby at that point.