Bbt so confusing help pls

Yvonne
My temp has spiked several times now and CF is not near as readable as some months, just been creamy and wet for two weeks now. Three different apps have me Oing on CD 12 or 13. One had me Oing on Thursday... Then I had a huge temp spike today and wondering maybe I'm Oing super late... Any help would be appreciated please :)