Pregnancy symptoms? Coffee tastes sour

[HangrySquirrel]

I’ve heard of metallic tastes in early pregnancy but never sour.
I don’t know if I’m going mental but since yesterday every time I make a coffee it tastes sour. I thought the milk was off, drank the milk on its own and it was fine.
Bought new milk to be sure, coffee still tastes sour. Bought new coffee this morning, still tastes sour!
I won’t be able to get a test until tomorrow evening but I’m wondering if anyone else had weird sour tastes in pregnancy?
I’ve been TTC for a couple months but due to PCOS my periods are v irregular so I can’t go on that.

Things tasting and smelling weird was the first sign for me in all my pregnancies. The area I live has lots of linescale in the water and I could taste it in drinks (and have never drunk tea again as a result)

Hope you get the result you want, good luck!