The return of fertility after childbirth is frequently delayed by breastfeeding. Once fertility does return, breastfeeding may have an impact on hormone levels, and thus, may cause some irregularity in the menstrual cycle. For women who have not had a menstrual period after childbirth and who are breastfeeding, determining the return of fertility in advance can be difficult. The best advice is to consider any day with cervical mucus potentially fertile, and to begin charting temperatures when mucus appears.
The charts in this gallery are those of women who are currently breastfeeding. This section is for completed charts and not intended for questions. If you have questions concerning an incomplete chart feel free to share your chart in the Chart Question Gallery. Click on a link to view the charts: