Evap?

So I took a test this morning but didn’t wait the full 5 minutes it looked negative so I put it to the side. About an hour and a half later (I know this makes it invalid) I picked it up and could see a faint line but I’m sure it’s an evap? I’m not TTC at the moment as I have an 8 month old but my period is 3 days late (has been on time up until now). I’m not on a contraceptive as we will be trying again in a years time but we’re using condoms 🤷‍♀️