About my period chart

Tara
Ok I started my period on jan. 19th and just got over it today now my chart has pink on the 19 but not on the 20 ,21,22, and then pink on 23rd and 24th and 25 but I'm over with it so I'm trying to delete the 25 and get the dates that don't have pink on it to turn to pink and it just don't wanna do it so how can I get this straightened out thanks