My sister has told me of a number of women that she knows who have had children, then had multiple miscarriages in their forties, and then a healthy baby at 45 or later.
So it is possible.
Stories of Pregnancy over 44 years old - sharing stories I find online, for inspiration!
You Can Get Pregnant in Your 40's - Sharing articles, discussing options & suggestions
Recent Keyword Searches: "pregnant at 49", getting pregnant at age 50, chances of pregnancy at age 46, 45 years old naturally pregnant, pregnant age 46