Metallic/Salty taste - could I be??!

I'm approximately 10/11 DPO and have had salty lips since Sunday, today I've had a horrible metallic taste in my mouth. TTC for 16 months for my 2nd and really don't want to get my hopes up as I seem to have every symptom every month but then BFN's. My boobs were really sore a few days ago but have settled a bit and I have had a few cramps. I am due on on Sunday, would anyone test now?