Has this (or something like it)happened to you?

Hear me out, please...

According to Glow AF is suppose to start today. However i had spotting 3/10 - 3/17. Day1 of Af before the spotting was 2/23 (17 days). That's not a long cycle and mine has been pretty on spot (22 to 24 days) and the 7 days was literally light spotting (no pad or tampon, no major clots, dark in color for most of it)

Could that have been Af or ovulation?

According to a calculator predictor app I would be 4wk2days today...

Should i test? Should i wait? Anyone else experience this?