Should I wait a couple days to retest or retest now with FRER?

Lei

I have 3 different apps that all says different start days for my period.

First app - 20th start day

Second app - 23rd start day

Third app - 26th start day

All tests done with wondfo strips, all negative. Should I wait to retest or test asap?! (Plan to test with first response)

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