Need opinions

Mary

According to the app it is stating that my cycle is 2 days late. I typically do not get my period till around the 15th so this early is not common. On a personal level, I do not have my period but rather have a brownish discharge. I am somewhat having some discomfort but nothing abnormal. Is this normal and how accurate is this app with predicting the start of your cycle? I don’t want to get my hopes up for being pregnant but this is abnormal.