Unsure

So this month I was 5 days late for AF and then it hit. Tmi here, but I've Been having light blood through the past 4 days. Only one day filled a tampon. I usually have 4 heavy days with multi tampons. 
​Been TTC with my Fiancé for a year now, and I've had 3 miscarriages. 
​Anyone have any ideas as to what's up ? /; afraid to take a test in fear Of that BFN again /: