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.
If you have just found out you are pregnant and you have been drinking alcohol, stop drinking now and talk with your doctor. Any time during pregnancy that you stop drinking you increase the chance that your child will not be affected by alcohol. If you are finding it difficult to stop drinking, help is available.