What would you do??

G

So I have written this post a bunch of times in my head and now need some advice from others out there!

I have had a salty/metallic taste in my mouth since the 11th of this month and it is driving me crazy. My period came on the 1st like it was supposed to but only lasted 2.5 days when typically it lasts for 4-5 days. My SO and I had sex the morning before my period started and I spotted a bit but nothing major. I took a HPT last week which came back negative and was considering taking another one this week (I'm not due for af until the 29th of this month).

My question to you all is this...do I take the negative test at its word and go with I'm not pregnant or do I take another test?