Any advice , tests gone fainter

Any advice as doctors are making me wait 2 weeks for bloods and early unit won’t see me for 3 days or so, My last period start date was 22nd July which means I’m about 5 weeks or so. I had confirmed after a vvvvf line then had a clear but digital positive 2 days ago, last night and this morning I used first response and the lines have gone non existent haven’t darkened and look fainter. Any advice as I had an early misscarriage in January so I’m just not feeling good about it. Pictures of tests for reference in comments . The strip tests being 2/3 days ago, the digital 2 days ago and the first responses last night and today.