Haven’t had a period in 40 days.

Is this possibly my period slowly starting or is it spotting.?? Because I had a miscarriage on 12/12/18 and I haven’t been using protection... but usually I have crazy wild cramps and I can feel my period coming but this time (if it is period blood) I have had no cramps or anything. Just weird cravings for cheese filled hotdogs 🤔 and one more thing, I’ve been testing like crazy, last one was two days ago and it was negative. but I’m not bleeding a whole lot, when I use the bathroom this is all that comes out on the toilet paper. Helppppp???????