Pregnancy symptoms?

Hi all you lovely women. I have an incredibly strong metallic taste in my mouth (on the left side) and the top half of my right boob is sore. I have also felt slightly nauseated for a couple of days but nothing drastic. I haven't taken a test for 3 days and told myself that I won't until I have symptoms because it's just disappointment every time it comes back negative. What would you guys guess? Anyone had the same symptoms? Thanks so much!