What day is the 1st day of your period? When u spott a little or the next day when you start bleeding?

What day is the 1st day of your period? When u spott a little or the next day when you start bleeding?
spotting day...
I think it would be considered when you start spotting but in general counting for your cycle..the one day won't make a difference.
Spotting day.
www.kotex.com/na/info/period/q...
try this site...may answer your question
The day you start a full flow would be counted as day 1. If you spot most of the day and then start actually flowing later in the evening count the next day as cd1.
HTH