Community post

It is only valid with about 15 minutes. Beyond that it could be evap. I would either wait or try First Response, since it requires so much less HCG to show positive

These are evaps and will appear after about 10 minutes regardless of your hcg levels. I would wait a few days and test again - it's probably too early.

Blue dye tests are notorious for evap lines (after the time frame) and false positives (within the time frame). I prefer the cheaper tests like the 88 cent Wal-Mart ones or the Dollar Tree brands. Those have been the most accurate for me and they are just as sensitive as a lot of the expensive ones.

Hours after would be evap lines. Only read the results in the time frame listed on the test instructions. If you just implanted, it's likely too early to test. The hcg hasn't built up in your body yet to register on a test. I'd test again in a few days.

Update.

Seems like the actual implanation bleeding was today, which explains the previous negative tests. Might still be preggo.