Not neccassarily have you done an opk? Last cycle i had ewmc the day before getting my bfp and some cycles I also get it just before AF, ewmc alone doesn't mean imminent ovulation but if you have a positive opk too could well be! Also white ewmc can be semen mistaken for actual ewmc which should be clear, ive made this mistake myself the day after bd and it was sperm not ewmc, main difference is it's slightly cloudy or white and doesn't stretch quite so far x