on the sixth day of sheva nekiim i saw a red streak on a white tissue, the bedkiot and underwear were all clean, im not sure if the amount of blood was less than a dime or not but since they were streaks probably not do i need to worry about it? start counting again?? i threw the tissue away so cant ask a shailah
In this case we are lenient, therefore you do not have to restart your count from the beginning.
All the best