I found the above Slate headline amusing.

Is a pregnant 52 year old that remarkable and worth speculating on how it happened? Perhaps my Catholic upbringing has numbed me to the uniqueness of the pregnant 50 year old but seeing a pregnant woman with grey hair in church was fairly common occurrence. I knew a guy who had a 30 years difference between him and his youngest sister.

The shocking thing for me at the time was the old people were still having sex not that it was biologically possible. Of course, it is biologically possible and doesn’t necessarily have anything to do with in vitro fertilisation (IVF).