Chemical pregnancy?

Hi everyone. I’m having a super anxious week as I tested positive on Sunday but I’m not really seeing a lot of line progression (especially on the cheapies) and I’ve already had 7 miscarriages, 6 of which were in the first 4-5 weeks. I took this test a few minutes ago and in the same cup of urine did a digital. This looked positive but the digital said “not pregnant” so I’m guessing I don’t have enough of the pregnancy hormone yet, which is concerning as I’m 15dpo (day after my period was expected) so it should be quite high shouldn’t it? I feel like this isn’t dark enough (vertical line) for 15dpo either? Think it’s going to be another chemical 😢