Feeling deflated.

After actually writing this down it appears it feels like a lot longer than it'd actually been so I don't know if there's even any point to this post.

Stopped bleeding CD11, got a shadow on hcg in CD14 and a clear negative on CD15

I'm now on CD18 (I swear it was later than that🙄) have been tested since the bleeding stopped. opks have been faint line below picture since CD14. Previous we're darker but was also having positive hcg.

When can I expect these lines to get darker. My usually cycle length is 28days so I'm assuming my period isn't going to come in the next 10 days?