A one-year study in healthy women who were also consistently cycling every 21–36 days and had normal ovulation, showed that it is usual to experience mild breast tenderness and swelling before the next period. Breast tenderness and swelling are common concerns associated with the menstrual cycle. However, little research previously has indicated how or if these breast symptoms are linked with ovulation.
Mild breast tenderness and a little swelling before flow are expected in healthy ovulatory cycles
