Does perimenopause cause discharge/blood streaking?

After my last period, I've had discharge that is all over the map. From watery, to mucusy, to from clear to brown/dried blood, to red blood, to greenish/yellowish. It's been going on for about 4 days but in the last 24 hours it has increased to the point I need to change my underwear a few times today.

It's just bizarre. I don't want to make an expensive and inconvenient obgyn appointment if it's just nothing.

I also had a very brief "period" around day 14 of my last cycle. And that's never happened before.

I'm 43. Could I be pregnant? Even though I had a "period" recently. Are these symptoms of perimenopause? I've had yeast infections before and bladder infections and this doesn’t seem like it's those things. There's no pain or irritation, just the discharge. No fevers or anything else.

Thanks for the input!