HELP ME UNDERSTAND

Hello ladies ! I’m 21 years old and recently I have had an experience with very on and off period like blood coming out of me but not around my usual period time. I took plan b a month ago and recently have stopped bleeding a few weeks ago. I haven’t had sex in a little bit and since then I have had discharge every day and it was thin at first but now it looks like this and it’s way more than ever !! It doesn’t smell gross but it doesn’t smell good it smells like metal and sour. Please help me understand!

I don’t have any pain or anything weird when I pee so idk how i could have a yeast inf or bv please explain google is useless