43 days

It's been 43 days since the beginning of my last period. I took a pregnancy test the day after AF was supposed to arrive, I had mild spotting 10 days after my last period and then nothing. I spotted for a minute on Thursday, and very little yesterday, and now vvvvv little brown discharge this Am
And now nothing. Could I be pregnant? Or is AF very slow coming. I need all the help I can.