Would you be happy with the line if the first time you tested was this morning?? It sounds like either a SMU or your afternoon POAS is stronger for you. You know that most Girls don't get a squinter until today.
I can tell you at 14dpo my line was lighter than the control, at 15dpo it was equal to the control and at 16dpo it was darker than the control. You've still a good 2-3 days for it to darken up to a decent shade
Try to hold on as much as you can and test late this arvo/evening and see how you're looking