Is it normal for the lines to be this dark after one day

Olivia

Top was yesterday bottoms today

I have been bleeding for 4 days but still getting positives , I went to the early pregnancy assessment unit they did a test and said it was negative , bare in mind I had a positive digital only 1 hour and 30 minutes before , I’m having no pain or nothing so I’m none the wiser , and very confused , wasn’t offered a scan or bloods either