Need some opinions

AF was suppose to be on Friday. I spotted a tiny bit on Thursday. Like one spot. I thought AF was coming, but nothing else happened. I have been having lots of creamy white cm. I just took a test and got a bfn. Could I still be pregnant? Did I test to early? I don't have any other symptoms except for the spotting. Which I thought may have been implantation. Please help! Thanks in advance