Quick Question

Candace • Ectopic 8/2016👼 Ectopic 12/2018👼 Ectopic 8/2020👼

So when doing the whole DPO thing. Are you Tracking from 1st day of last period for the correct amount time yo determine how far u are? Or are you Tracking from that crampy peak day? I know this sounds stupid but Im just a lil confused.