Late-showing bfp??

Ok ladies, I need ur help.

I took a Walmart pregnancy test and at first it looked negative so I immediately tossed it out after the reading window.

Now when I was cleaning up, something told me to go look at it again and I look at it and there’s a faint line? (I’ve done this before where I would get OCD and check it again but it would be clear negative still). I’m still about 10dpo so I’m still hoping. Could it have just taken a while to pick up on hcg in my urine?? **hopeful**

Anyone have this happen to them??