Started my period 10 days earlier... or what I think is a period

It’s been extremely light. I’m usually a super plus gal my 2-3 day on my period but I’ve been able to just use pants liners.

I’m worried because I did have unprotected sex...

But I also did miss a day and a half of my birth control... however I just started it two weeks ago so I’m wondering would my body adjust to it so quickly.

And would that explain why it’s so dark? But if I’m early why is it so dark?