This is going to turn into a younger mum vs older mum thread - as they always do! And multiple dozens of posters will be coming on with tales of how they had their two kids at 43 and 45, and how every woman they know had their first baby after 40.
There will also be tales of how, in the 1950s, their great auntie Ida had her last at 49/50. (And their great grandma had her last at 51.) In reality, many of these babies were the child of the woman's daughter, and she raised the baby as her own.
In the real world, the average age for a first time mum is 30, and most women will have their last before 40. Late 30s is getting on a bit for a firstborn, but not TOO old. If I was your age I wouldn't be leaving it any longer though @Iamaman10012
Also, when a woman has a baby when she is 43-44, (or older,) it is almost certainly (in the vast majority of cases,) through IVF. The chance of conceiving naturally at that age (and older,) is vanishingly rare. That is why I always question the 'my great aunt had a baby in 1953 when she was 50' claims, and think the baby was, in fact, the great aunt's daughter's baby.