(All of the following tests were FRER)

If I took a test yesterday morning around 8 and it was very faint but you could still see the pink line, and then took one around 7:30 last night and it was a good bit darker but not as dark as the control line, should I be concerned if this morning at 7:30 (12 hours later) it looks the same as last night? It didn’t get any darker than the one last night but it’s definitely darker than the one yesterday morning. Sorry I know this may be a ridiculous question, I just don’t know how much they are suppose to darken with each day.