EWCM right before my period - is it my supplement?

So my CM has behaved fairly predictably this cycle until today, when it suddenly turned from its usual light and sticky self (I’m at the very end of my cycle and expecting my period in 1-2 days) to generous globs of EWCM. I rarely get EWCM, so I’m not complaining, but I never see it at the end of my cycle like this! The only possible cause I can think of is the FertileCM™️ supplement I just began taking. It’s made by Fairhaven Health, and I bought it after seeing it recommended in the book Taking Charge of Your Fertility.

Does anyone else take this supplement, and, if so, did it have a similar effect on you? I’d love to hear about other women’s experiences with it so I can figure out whether my own experience is one of many or whether my body is simply being weird.