period twice two days apart?

Last month I got my period twice. That was super unusual for me because my I usually get it at the exact same time every month for the exact same amount of days. This month I got my period 4 days late and it lasted 7, it ended on the 23. today is the 25 and i got it again. My app won’t even let me put it in as a new period and i’m worried that somethings wrong. PLEASE HELP