When would u start counting DPO?

Question

I got a positive opk 4 days in a row and finally on the 5th day it was negative.
So would I count 1 DPO as being that first day it was negative? I know 4 days of positive OPKs is unusual so I think my body just took a bit longer to release the egg this time.
I thought I was 9dpo today but I'm starting to think I'm only like 7...

Answer

I got my positive OPK today, so going to count tomorrow as ovulation, then DPO1 the day after that. You can get positive OPKs for a few days but ovulation generally happens 12-36hrs after the first positive

Answer

I’m confused on this as well. Last Friday evening I got a bfp opk and then again Saturday midday. I feel like it would count on Friday but Glow counts Saturday.

When would u start counting DPO?

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