When should I test? (Please look at pictures)

I've been using a lot of apps to try and see which ones I like best. I'm kind of irregular but on a few its showing that I've already missed my period. Others say that I start the middle of next week. What day should I test?

These three say I should be starting today and the next three say sometime between tomorrow-ish and the 29th.

When should I test!?!🤔😱🤞

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