Spotting again. Any insights?

LJ • Baby girl born Feb 19, 2015 and second girl born Jan 20, 2017. Baby #3 due in October!
On about 6 DPO I had some pink spotting just once that today. Today at 10 DPO I just checked my cervix and it seems to be very soft and I had some blood at the end of my finger. My CM since ovulation has stayed creamy looking and sometimes stretchy. Any ideas? Last month I had pink spotting about 12 DPO and the month before it was around 9 DPO. And neither of those months did I have so much CM.