What's happening af or not ? 😟

Start off af was 8 days late (due 21st March ) i tested 3 times got bfns. Yesterday i started spotting pink so knew at had finally started, by bedtime had what i consider alight flow same as what i get at the end of af, so I put in a tampon and went to bed. I get up this morning expecting flood gates and there's nothing. Did cervix check its still high can't reach see f it open or not. And cm is still stretchy cm. Sorry tmi does anyone know whats happening ? Usually af starts light then within a hour or so comes full flow really heavy for 2 days then light again. I never spot before. Is this because I was so late . Or could there be a chance that i am pregnant after all and having pregnancy spotting ? Sorry if this post is confusing but its been a long time since I was last pregnant and I haven't a clue what's happening or what to do.