Would love some opinions

I first want to say that I have no idea what DPO I am my cycle has been odd the last few months.

So on Saturday I tested and saw a faint line

Then I tested again on Sunday and there isn't a line in sight

So I tested again today and again, nothing

I've been very fatigued, sore breasts that are different from my usual AF sore breast, I've had alot of watery CM, a little bloated and a little nauseous.

I'm so confused, what are your opinions?