How long does it take for epo to work? I started taking it this month just after af and have had loads of ewcm for the last week, immediately after af finished. I normally only get a tiny bit of ewcm for a day or two at ovulation. Does the epo give u fertile cm straight away or what the hell is my body doing this month?! Today my cp is HSO, so along with the fertile cm suggests I could be ovulating? I'm confused though as i'm only on day 10 and I usually ovulate on day 21. I'm also spotting today, 6 days after af finished. That has never happened me before. x