Help!!

So I took a clear blue test yesterday evening and it came back as what appears to be a faint positive (I’m currently 11 days late) this morning I decided to take a clear blue digital test and it said not pregnant... is this because maybe my levels aren’t high enough to be detected on the digital test? But shouldn’t they be somewhat high considering I’m 11 days late? I’m just sooo confused and don’t know what to think.. I’ll post pictures of the test I took yesterday.

Just looking for some insight or advice from anyone who has experienced something similar.