Another miscarriage?

Ok so I have very strict periods always 28 days apart, and mine was late this month.

Due November 7th, and had negative tests everyday until I started bleeding on the 10th. It was like spotting amount, but red not pink. Sunday, it turned brown, and Monday it was gone with a little bit of discharge with pink mixed in.

I took a test Monday because I’m an addict lol, and it was negative.

Anyways, fast forward to Wednesday, and I decide to take a test because I was puking at work and I’ve been exhausted. There’s a faint line now! And this morning it was slightly darker!

Is it probably that I implanted late and the bleeding I had was implantation? It can’t be chemical since I had negative tests even after the bleeding, so does it sound promising?

Sorry if that was a little confusing lol.