Insight PLEASE. Orange bleeding!

Hi. I've googled but have found conflicting answers. Been trying to conceive for 3 years and have had 3 miscarriages that I know of. My periods have been on the dor for the last 6 months. However today I was walking through the store has suddenly felt dizzy and tired out of no where. I shook it off and went to checkout. When I was waiting in line my stomach started hurting really bad. When I got home I laid down for a bit and when I got up I got incredibly dizzy again. I went to the bathroom and I (think) started my period. However it is 5 days early and accompanied with bright ORANGE blood with heavy clear mucus. I've never had this happen before. I put a tampon in and a couple hours later I have hardly anything on the tampon but after I went pee there was even more mucus with orange blood and cramping. Has Anyone else had this happen? What does it mean? Normal? Help!?!