Symptoms!! Help!

Its killing me to not know

Negative tests (have done several!)

I am getting paranoid

Symptoms:

7 days Missed period

Lower back pain (not sure whether due to training or smth else)

Transparent odourless discharge this morning

Light nausea (since 2days)

Implementing bleeding (or at least it looks like this. Dark liquid brown discharge 1week after ovulation)

But

NO SORE BREASTS WHATSOEVER

NO CRAMPING

ONLY MILD BLOATINGS

NO FOOD AVERSIONS JUST BIT OF NAUSEA

THANK YOUUU❤️