hello this will help you!!!!!!
* Breastfeeding frequency and total amount of time spent breastfeeding per 24 hours are the strongest factors leading to the return of fertility: a mother is more likely to see the return of fertility if baby's nursing frequency and/or duration is reduced, particularly if the change is abrupt.
* In some populations, research has shown that night nursing slows the return to fertility.
* One study showed that mothers who were separated from their infants (but expressed milk to provide 100% breastmilk for baby) had a higher pregnancy risk (5.2%) during the first 6 months (Valdes 2000).
* The introduction of solid food can also be a factor in the return of fertility. Once baby starts solids (if mom's cycles have not returned), the natural period of infertility may be prolonged by breastfeeding before offering solids, starting solids gradually, and not restricting nursing.
at 12:31 AM on Apr. 9, 2010