you can't do the "math" unless you have all of the numbers in the equation. i do not know anything about the medical history of either person. it will depend on the medical status of the 48 year old (man or woman? ) and the 52 year old (man or woman? ) so i would suggest that you visit your respected medical providers for a consultation. conceiving at a later age is not something you should consider unless you have all of the facts.
what is the math of a 48 year old and a 52 year having a baby. signed worriedcoldstorm