BBT chart & 2 days late

Addie
Hey! So AF was due on cd 28 and hasn't come.. It's now cd 30 and I'm nervous to test because I don't want to be let down again! My husband and I have been trying since a mc in early feb so I'm praying this is it! Any thoughts on this chart?! If AFstill hasn't come by Friday, I'm going to test! (Ps I started charting on cd 7, so I just put 97f for my AF days)