I had a week or so of heavy/steady bleeding and then stop and start/light bleeding for another 3-4 weeks (spotting really).

I also laboured and was told I got to 8cm (then that was revised back to 6-7cm). I also had a heavy PPH but I don't know if that would affect the lochia at all as it was coming from a different place iykwim?

Not sure about the no bleeding at all though? Perhaps her memory has faded or the procedure for c/s has changed? (Like maybe they used to somehow take out the lining as well as the placenta???).