My cycle was slightly longer in September and I came on a few days later than expected however completely within normal range. I work in sonography and the day prior to me coming on my sonographer scanned my ovaries and endometruim transabdominally she could not see my left ovary however my right ovary was very large and presented like it was due to ovulate. Then Thursday just gone I had pink residue only when wiping. Just wondering if anyone has experienced ovulation not long after period. Could this have been implantation bleeding ?