Metallic taste early on?

Rebekah

I am around 6 dpo (I say around because I have only been tracking for one full cycle so not 100% sure. Since last night I have had a horrible metallic taste in my mouth which gets so much worse when I drink water. I’ve also had a headache for around 5 days now, very mood swingy and needing to pee lots of times during day and night. I know it’s early, I do have a short cycle normally around 23 days so I’m wondering maybe I ovulated earlier than the glow calendar predicted? AF not due for 6/7 days. All other symptoms I would of put down to PMS but the metallic taste is a first. I am going to get a covid test today to rule that out. Anyone else had these symptoms early on that resulted in BFP?