Cd36 11dpo

So I apparently ovulated really late last month, which changed my period to a week later making my cycle 40 days long... I'm now on day 36 (my longest cycle has only ever been like 32 days) I feel off but I don't think it feels like AF is about to show off, it feels somewhat similar but completely different at the same time if that makes sense. The question is though, should I test in the morning or should I wait until the new day the app changed my period to? I'm getting so impatient because according to my other tracker app and what this one originally said my period should have been 3 days ago. I don't know, I'm slowly driving myself crazy 😖