16 DPO, 3 days late on period, spotting today?! Help!

Ashley

I️ need some advice or input! I️ am 16 DPO and 3 days late on my period. I️ am never late! I️ had a BFN test the day after my missed period. Now I️ have very light brownish discharge/spotting. Is this normal for early pregnancy? Could I️ still be pregnant? I️ was hoping I️ was but the negative tests have been worrying me and now I’m spotting? But seems to late to be implantation bleeding. Anyone experienced this before and ended up being pregnant?