The most traumatic situation for a woman can be an unwanted pregnancy when she has a very young baby. Since menstruation is often delayed during breastfeeding, a woman may not even realize that she is pregnant again till the pregnancy is advanced and too late to abort. Recognizing the special needs of breastfeeding women and their concerns about contraceptive methods available, the WHO Selected Practice Recommendations for Contraceptive Use (WHO WHOSPR) released guidelines based on scientific evidence in 2004.