LR if you're getting lots of creamy cm then I would watch your temps and retest with FMU in a couple of days. It's very possible you ov later than you thought and implanted later than you would think (if oyu're pg I mean). Lots of creamy cm is a sign of pg (as well as other things I guess?)! You may well not be pg just thinking back to my constant poas when I was SURE I was x number of days past ov...and I was about a week out (don't ask me how, I still can't figure it out!!!)