Good line progression?

Sarah • IVF success! Boy Mum 01.07.2020🤱🏼

I took my trigger shot 13 days ago. We transferred a 5day blast on 04/24 so I’m 6dpt. Is this good line progression because I feel like it’s getting lighter...or maybe the trigger is leaving and my natural HCG is setting in? Just looking for thoughts here...

*idk why the pic posted like that