Your blood flow is always heavier immediately after your c-section and will continue for about the first 4-5 days, but it should get progressively lighter after about 10-12 days, however it could also last up to 6 weeks. Typically the range of bleeding is about 3-4 weeks. In your case better consult you gynecologist immediately to rule out post c section infection. obesity, diabetes,poor prenatal care,previous C-sections,lack of cautionary antibiotics or pre-incision,long surgery,excessive blood loss during  surgery may the triggering factors