Help!!! 😐

Hi all, I’ve been having a lot of discharge the past few days. It started off being white/ clear & now it’s this colour ( pic attacked). It’s itchy also, I went to the doctors about just over a week ago & got swabs done because I was itchying and sore, it all came back negative for everything. No sti, no thrush, no BV. They gave me a pessary & cream just in case it was thrush. It went away for a few days and is now back as I said. There’s no odor or anything it’s just itchy & discharge is now yellowish. I called my dr today too and she told me it’s unlikely I have thrush because it all came back negative a week ago. I’m a week late on my period also, but have done at least 4 tests and are all negative.