Hi there! We've been ttc no.3, a couple of days ago, about CD 26 I had a small amount of brown spotting. Then no more whatsoever. This prompted me to poas on CD28. Got a definite but not that strong of a line! Decided to retest 2 days later and it's basically the same strength, so one day later I tested again and no change! With my other two babies I had stronger lines so I never retested. Would you have expected the line to be progressively darker after 3 days??