Implantation Bleeding - When to test?

Carly

Hi!! We are TTC and it’s our first time. I believe I’m having implantation bleeding. My period is supposed to be in 2 days, but I have very light pink spotting. I’m wondering, because I’ve read differing opinions online, does implantation bleeding mean I won’t be able to get a positive test if pregnant for at least a week? I’m so anxious to know!!!