Already!?

Ma

During the month of April I had spotting on and off for 13 days. So I counted that as my period. The app says I ovulated the week before the last week in April I feel like I might have. (I have PCOS so everything is wack) but it’s only been two weeks since I stopped spotting and today I have brown spotting. Do you think it’s implantation bleeding or my period coming again?