TTC while breastfeeding

Bria • 30 years old - Married - 20 month old

I currently have a six-month-old who I am exclusively breast-feeding. AF has not returned yet and my husband and I want to TTC our second. My doctor said it is possible to conceive while breast-feeding but really didn’t give me any more information. Anyone with this experience how long did it take you to conceive? Any advice or information is greatly appreciated