I used soy ISO when I conceived in October. My cycle was very long the month prior, I o on cd 23 or something. So I took it the next month and o on cd 14. I believe it helped but I don't know for sure. I think from what I read, and knowing it "acts" the same way Clomid does, that it sways pink to some extent and the reason it may sway blue is due to the excess EWCM it may help produce.