2 positive Tests -- Then 2 negitive

On Wednesday night I tested and it turned out a very faint positive.

So I tested the next day and I got the same thing. A very faint positive.

Later that day I tested and it was negative and today again I tested and the same thing. Negative. Anyone have any idea on whats going on?  

You're pregnant.

Did you use the same brand test? Some are more sensitive than others. Maybe the first 2 were more sensitive than the others.

It's like your urine was just more concentrated when you got the positives. It's possible you could have had a chemical pregnancy...I would wait a couple days and test again, and then stop testing so you don't drive yourself crazy!

Test tmrw morning when you get up.

how late are you? some will detect a positive before others so it could do with that...

They were all the same brand. First response. Im not exactly sure how late I am. I got my mirena out a little over a month ago. Just really confused.