Hi Nikki.. I'm so glad you have gotten a few answers.. I had a Lap done on the 30 September and my AF arrived on time and was pretty normal for me, but my Lap was done on CD7 and all other blood had come through by then.. I was thinking that maybe with you the old was left over and the red is AF with AF bringing the old down if that makes any sense... (sorry.. I do explain stuff in a weird way..)
Good luck and I hope your tubes are fine..
Dee