Super Confused!

[Irish42]

So I was having symptoms of being pregnant. I took a clear blue digital test and it came out negative, that was three days before my missed period. So i waited and tried again three days later. And it came out negative. and i got my period two days later, (which was Friday night) and its only lasted for two days. Friday evening and Saturday it was really heavy and now its spotting and now its pretty much stopped. I haven't taken a test again, but my periods are usually the full 5 days. Any suggestions or comments would be greatly appreciated.