Late period

China • 23 | Mother to Roman | Married

My period was due Nov. 19/20 I took a pregnancy test tues. Nov. 22 which the both test look faintly positive I took one today which looked negative so now I’m confused my Flo app shows I’m 2 days late and if I’m not pregnant where is my period I’m very regular 28 day cycle longest is 34 days so now I’m having very mixed emotions. What should I do?