Expired OPK v. Digital

Alright so the regular opk I have expired in 2021 (pregmate brand). I thought maaaayyybe that didn’t really matter but now I’m looking at its result, seemingly close to peak, and the digital (brand new) one looking not at all close to peak. Is this because of the fact it’s expired? Like can they lose accuracy or sensitivity?

I was trying to save some money to use what I already have so I replaced the digital but not the reg test strips. Should I just toss the old ones and give in and buy new ones? OR…are they RIGHT? I don’t even know lol.

CD 6. TTC round 1 last month for our second with the regular strips and obv not successful, wanting to try again. :) Our first was conceived in Sept 2019, born May 29, 2020, so she’s almost 4. I’m 36 and hub is 43.

Thanks!!!