Advice needed!

It’s been 40 days since the start of my last period. Typically mine is 28-30 days in between each period. 3 days ago I had a light pinkish discharge when I wiped in the mornings. Which I assumed could possibly be implantation bleeding. I’ve taking pregnancy test every morning since then but had negatives on all of them! We’re not trying to conceive but we’re not trying to avoid it either. We use the “pull out” method but I know you can still get pregnant this way, that’s how we go pregnant with our first! Is it still too early for me to be testing? Or is my period just super late for some odd reason?