A woman who recently delivered a baby is exclusively breastfeeding and relies on the absence of her menstrual cycle to prevent pregnancy. Identify the specific name of this natural contraceptive method and the maximum period following parturition for which it is considered highly effective.

Step-by-step solution

Lactational amenorrhea is a natural method of contraception based on the absence of menstruation and ovulation during the period of intense lactation following parturition. According to NCERT, as long as the mother breastfeeds the child fully, chances of conception are almost nil. However, this method has been reported to be effective only up to a maximum period of six months following parturition. Periodic abstinence and safe period methods involve avoiding coitus during the fertile period of the menstrual cycle,