Had baby by c section 5october. Bled until 17 December when strange grey lump came out vaginally. Went to hospital. They told me probably membrane left from pregnancy. Scan showed nothing left. All fine until today 24 jan when started light bleeding today brought it was period. But to light in colour a pinky streaky red fresh blood. I noticed some pus like fluid come from my vagina on the tampon. Is this bleeding due to the strange discharge that came out again? Is it pus or should I be worried its something worse? Should I go to my doctors?