one last source for 26+ for first birth already in 2014: https://www.cdc.gov/nchs/products/databriefs/db232.htm https://www.cdc.gov/nchs/products/databriefs/db2

one last source for 26+ for first birth already in 2014: https://www.cdc.gov/nchs/products/databriefs/db232.htm https://www.cdc.gov/nchs/products/databriefs/db232.htm the original cdc numbers cited are perhaps not best way to look at the matter, because they include women who were giving birth in 80s and 90s.