Could it be spotting??

Ariel • ........................
I do not opk so im not sure of my ovulation i just go by my app chart for now. Well it said the 10th then changed to the 14 i was supposed to see AF the 24 but she didn't so i took a pt it was a Bfn. Well Af arrived later in the day on the 28th. Which was weird but i figured her timing was just off. Well she was extremely light and almost completely gone ehen i woke up this morning. Could it be spotting or is AF playing tricks on me. I just dont want to get excited but i cant help it because. Ive had dull breast pains pains in my right side and constant urination. I hope she doesn't come back.