Will someone help me?

On Sunday, I started spotting some. Just a pinkish color, and would only come out on the toilet paper. This happened again on Monday (if i'm not mistaken) and just stopped. I found it strange because that never happens. I read where that could be implantation bleeding, and started to wonder a little bit. Then yesterday, I had a thick white discharge on my underwear, and also read where that could be a early sign of pregnancy. What would you do in this situation? I bought a test, but I haven't taken it yet.. Help?