when to input period day 1??

Theresa

Do you input spotting as the first day of AF or wait until full blown bleeding?? My period always starts light at first (and I have the fun game to play of is it AF or implantation, ugh), and I've been inputting day 1 as once the spotting becomes heavier bleeding. Maybe I'm messing up my chart and that's why I'm having so much trouble ttc every month. :( Any thoughts or encouragement would be amazing, thanks ladies!