Pregnancy Test

I just recently took a pregnancy and it was a Clearblue and it came back positive. But was very vaint. I took a little dollar test and that also came back positive and was vaint. The next day I got two more clearblue test too take in the next morning. One digital and one regular one. And they both came back negative. Is there a possible chance that I could be pregnant? I'm about couple days late on period.