27 days post d/c: tests getting darker? *pic heavy*

Please bare with my ramblings. Unfortunately I didn't follow my levels to 0 (note to others, despite what your OB says, follow your betas to 0!). I did during my 1st m/c and there was no doubt about a new pg, this time I didn't :? . Now there is confusion.

Anyhoo...Here is a pic from my m/c from exactly 7days ago. I was thrilled to see my tests almost neg!
http://i25.photobucket.com/albums/c5...d1e33adf-1.jpg

Then here is this mornings test, last nights test and Sat's test, top is most recent:
http://i25.photobucket.com/albums/c5...9d516e22-1.jpg

Saturated:
http://i25.photobucket.com/albums/c5...516e22-1-1.jpg



Here is todays (top) and Sat (bottom):
http://i25.photobucket.com/albums/c5...a5f633ab-1.jpg

I wouldn't expect last nights and this mornings test to be surprisingly noticeable considering there was 10hrs between them and one time in between there I went to the bathroom.


Opinions? I will be testing later today/night to compare last nights test w/ tonight's test.