I'm confused now!?

Jazmaritza β€’ Two beautiful daughters πŸ‘­πŸ‘‘ 1 angel baby πŸ˜‡πŸ™πŸΌπŸ’™πŸ’— 10/03/2018 #ttc baby #3

So yesterday I took an OPK and got my positive. I entered it and it said peak. I took one today and it says peak πŸ€”πŸ€” Do I go by yesterday's or today ?