Period or misscarrage?

My last start date of my period was 27th January I came off on Wednesday the second, been trying for a baby but then on Monday 21st I started spotting really light pink blood only a tiny bit but then on Tuesday it got heavy and I thought it was my period but Wednesday and Thursday its got so heavy were I have to put on 3 pads and still only last for an hour it just wont stop not like a period at all.