cant stop testing!!

Re

got our BFP yesterday at 9/10DPO and now i cant stop testing to see if the line gets darker... even though i KNOW hcg doubles 48-72 hours 😂 its our first so im dead excited but also so scared

i cant wait. i keep looking at that little line ❤❤❤ does anyone know hpw dark they can get and when would you suggest taking a digi (dont want to waste it)