Weird bleeding/spotting

My period was suppose to come 2/28 I missed it but on 3/2 I started spotting at night it was pink I thought it was my period or something then it stopped... Well then I woke up the next morning and there was a little dot on my underwear when I wiped there was a ton of blood but it was brownish red & mixed with Cm (sorry if tmi) then it stopped again after a hour every time I go to the bathroom it was less and less... Today I wake up and it's the same thing... Is this my period ?? This never happens to me