Trigger shot not getting lighter

I did Letrozole 5mg on cd3-7. I got a blazing positive opk on cd11. And I had a follicle scan on cd 12 that showed I already ovulated one egg either that day or the prior day but I still had one big 27cm follicle on the other side. So the RE triggered me that day to up my chances with the second follicle as well. So my trigger was POST ovulation, not before, if that makes any difference. This was my first trigger shot so I don’t have anything for reference as far as how quickly I metabolize HCG. It was Ovidrel 250mg. My tests are not really getting lighter though. Is this normal? I keep looking on here but everyone seems to have drastically lighter tests each day. Trying to be cautiously optimistic here but not get my hopes up too much. Thoughts???