Many of the moms I knew (when I was raising children) did the same: They started having children in their 20’s and continued into their 40’s. Other moms started in their 30’s and continued into their late 40’s. And a few others started in their 40’s. None of them used fertility doctors. Most were surprised by their pregnancies.
Many women over the last 30 years were told that simply being over 30 made it difficult to have children, when age, even into your 40s, is only one of many factors.