No probs love.

So you have a 28 day cycle and are now on day 47, with very light bleeding on days 43-46? I would say that if you were pregnant that would show up on a test. It's if you get implantation bleeding a few days before your period then it can take a while to show up on the test, not a few days after from what I know.

However, you haven't said what's going on in your life - stress can make your periods late or different, as can a number of hormonal changes. You don't say what protection you've been using or if your TTC (trying to conceive). All sorts of things can mess with a period: stress, grief, dieting, work pressure...

You can always try another test tomorrow morning because false negatives do sometimes occur. Or you can hang on another week and see what happens. Up to you. I hope your body gives you the answer you want.