Pregnancy test

So we had a miscarriage last year we then got pregnant again very quickly we gave birth to beautiful baby boy who we sadly lost at 5 weeks old due to sepsis. I was 3 days late on my period on Wednesday so did a test as we wasn’t not trying but not preventing either. If my flo app is correct then I would be 19dpo today. I’m just anxious as I can’t face no more heartbreak I’m not sure if the line is getting any darker, what do you think ?