period was 4 days late, came on the last day of my expected period?

so, I was dude for my period 11/26/17 I did not get my period the first four days..the last day of my expected period i came on 11/30/17, been bleeding very light..the color started off bright red..not even enough to fill up a whole pad..then the second day..it got a lil heavier, with a few little blood clots..that's when the color started changing a little(medium red), then it went back down to being light(the period)the third day is when it all started getting weird...the color started to Brighten up, and the flow slowed back down a bit like I said (not enough to fill a pad) then the fourth day(which is today) it's dark brown-ish looking a lil black...? I still got the pregnancy symptoms and all..breast fill fuller/ache..stomach pains and lower abdomen cramping, also fluttering..feeling nauseous but not throwing up..still got heightened tastes and smell..diaharrea bad..this started last night🤦..😒 and on and off bloating.. What's going on with me?..is it a period..am I still pregnant?..I need answers!! can anybody else relate?