Early stages of pregnancy?

I was on my period about 2 and a half weeks ago. And about 2 days ago I noticed when I wipe a dark bloody discharge. However it’s not the color of consistency of a period. I’m also incredibly tired and having some lower back pain but it’s pretty dull. I am on the pill however I do sometimes forget to take a pill or two. I know it is too early to test but from experience did anyone have these same symptoms at such an early stage?