Chemical or early pregnancy bleeding ?

April 5th - 9th ish I had spotting that started out as light pink cm later in the day it would be a little heavier but light pink and only when I wiped, eventually it turned dark brown so I thought maybe implantation Bleeding I waited 2 days took a test and I got a very faint positive confirmed here by my lovely glow ladies 💕 and another app I use as well I waited a few more days (making it yesterday the day I last tested) and again I got my faint positive. Ive had sore boobs, emotions sky rocketing, tired as all hell, nauseous and just full on WAY off lol. So everyone says first morning pee is best so I took a test early this morning and it looked negative to me but maybe a faint line ? Went to Walmart and got more tests took one around 1pm and again so faint you can only see it in person with squinting and last time I went to the bathroom I spotted a little blood color was light pink only when I wiped. now it’s just dark brown and barley even there. Thoughts ??? I really don’t want this to be a chemical as I just had one 🥺🥺🥺 I just want the bean to stick ! Thank you Ladies ❤️❤️

Edit:

Added a pic of the last test I have taken today