I typically wait until Day 6 of my period before performing a hefsek tahara because I know that I always have remnants following Day 5. Because I don’t want to be overly strict, I decided to do a hefsek on Day 5 this month. The hefsek was clear. The next day (Day 1 of white days) my bedika was again clear, but at night, tannish–brown. In the morning of Day 2, I woke up with stains on my white underwear. They were brown streaks; each streak smaller than the size of dime. My bedika was a much lighter tan.

My question is: because I am prone to these remnants (which, a rav every month has said are pure, and not blood), is it safe to say that I may perform the hefsek on Day 5, rather than Day 6, even though the bedika is ALWAYS brown on Day 1 of the white days, which is what would be Day 6 of my period?