Discarding temps?

Melflower🌻 • 🌻Married // Mom 💙; ttc#2

I have been temping orally but think I have been open mouth breathing which has caused my temps to show lower than what I know they normally are (judging by past cycles). So this morning I temped vaginally instead.

Does it make that much of a difference or should I just discard this temp? I’m 3dpo if that makes a difference