How much bleeding is normal at 4 weeks?

Kaleigh • 31 - PCOS - 👶🏻💙👼🏻👼🏻👼🏻 💛

I got my BFP yesterday at 12 DPO. It was a faint line on 2 different tests. Took a third test this morning and it seemed like it could have been lighter than yesterday but still there. Today I have been bleeding. It’s more than just spots but it’s not enough to get on my underwear, I just see it when I wipe. It’s kind of a dull reddish brown but it’s a big streak.

I don’t know if this is implantation bleeding or a chemical pregnancy or just normal? I just want some opinions. Doctor’s office is closed since it’s Labor Day and I’d rather not go to the ER.