Pink discharge 3 days before AF

... at least I think I'm 3 days before AF, my last cycle was 26 days so that's what I'm going by, but it can go up to 28 days. I dont know for sure when I ovulated, I was getting EWCM from cycle day 11 through to 16! We only BD once on CD16 cos we were on holiday with my family and had no opportunity 😳 so if I go by ovulation being on the last day of EWCM (that's apparently what's most likely), that would make me 8dpo. I'm not taking any pregnancy tests until Monday evening (the day AF is due) but surely our odds are slim anyway. Last month I had dark brown spotting for two days before AF, so this pink is different... anyone have any experience with this?