Experience needed *possible trigger*

I’m going to the doctor don’t worry. This is a really strange and a little graphic but I have to ask because I can’t find anything on google.

Ok, first of all, I’m a week late for my period. I took a few tests: blue dye 3 days late (faint positives x2), pink dye 5 days late (negative x2). On the 6th day *warning* I passed a large chuck of tissue at a restaurant, so I couldn’t put in a container for testing but I assume this to be fetal tissue, very traumatic to happen at dinner btw. I thought this may be a miscarriage but I haven’t started bleeding, nor was there blood present when I passed this.

I’m obviously very concerned. Has anyone experienced something similar to this?