Confused

Lauren
Anyone else that was on birth control before TTC and had normal/regular periods while on the pill but then after going off of the pill have irregular periods? This month according to this app based on previous AF entries stated it was to start on 11/9. Well it did not, took a test on 11/11 came back negative. Then tells me it is to start 11/12 and it didn't. Just trying to figure out if I should wait till next week sometime to test or just go to my doctor to find out. Any tips advice would be appreciated.