What's happening?

Okay so over the past three days I have taken a total of 7 pregnancy tests. The first test was the blue dollar general test and I took that in the middle of the afternoon. The next was just the simple basic dollar general test (red) and it was negative but then slightly positive past the time limit. Then I took two dollar general tests (red) the following morning and they showed a light positive within a minute. Then I took a first response but was in the middle of the day and I had already peed a lot and it turned slightly positive. Lastly I just took two first response and they were faint if not just as faint as the one yesterday. I don't know what to think anymore. Please comment. The last picture was taken after time limit but looks almost the same.