Found in the spellings of Atkinson, Aitchison, Acheson, Aicheson, and Aitcheson, it is as a patronymic form of the medieval male given name Atkin or Adkin, itself a double diminutive of the Hebrew name 'Adam', meaning 'red earth'.
But for natural conception, age rarely keeps women from getting pregnant until they are over 40. Even in their early 40s, though, most women are still able to get pregnant, especially if they use ovulation prediction.
The question of how soon after you stop breastfeeding can you get pregnant is slightly complex, because you do not need to stop breastfeeding to get pregnant. You can get pregnant while you are still breastfeeding although the chances of this are slim. It is a common misconception that breastfeeding poses as natural birth control.