I have relatives who gave birth to children at the age of 44. Iknow two doctor friends whose mother was 42 and 44 when they were born.
My Chinese doctor told me that she successfully helped a woman aged 50 to give birth to twins. She showed me their pictures too. Most older parents are more mature and they can provide better education and financial support.
It's encouraging to know that women do have success in pregnancy over 40. I've done 2 IUI's but no success. This month, I'm using Clomid and Injectables. Hopefully third time is a charm.