Should I test or wait it out need a second opinion

So here are the facts

TTC for 7 months

Past 3 cycles have been 30CD, 32CD, 35 CD

Currently on CD 36

On CD 27 I had extreme stomachache

On CD 32 I got what I thought was the "pre-period" but instead of the "normal" pink gel I was getting a spotty brownish only when I wipe.

CD 33-36 still tiny bits of this "pre-period" stuff like the photo below warning ⚠️ TMI.

Normal AF comes within three days of pre-period pink gel.

It's been 5 days and hasn't turned into AF

I don't think its implantation since it's not that common for women to get it and it's around the right time for my period to begin.

I'm trying hard not to symptom spot this time but it doesn't seem to be starting.

Other "symptoms" are I've got a mild cold, my mouth and lips always seem dry/dehydrated.

How long would you wait?

I bet af shows up tomorrow.