Confused (TMI picture included)

***PICTURE INCLUDED***I have three kids but I don’t remember having this come out when I was pregnant with any of them. Unless I just didn’t notice it and flushed it down. My last period started 1/15/21 and I went for about five days. So it was a pretty normal period for me. I still haven’t gotten my period this month. All of the ovulation stuff and all that confuses me, honestly. And it doesn’t help that my periods have almost always been kind of weird, so it’s hard to keep track of all of that. So I’m not sure EXACTLY when I would have ovulated. I’ve been super nauseous and exhausted and it almost hurts to wear bras. I’ve had some cramping but fairly mild. I’ve had just about every textbook pregnancy symptom, but the problem is, a lot of those imitate PMS symptoms so it’s confusing. I tested on 2/17/21 and got two negatives with Meijer brand tests. I haven’t tested again since. For the past few days I’ve had pink and sometimes brown spotting so I thought i was just getting my period late. Then last night I had this pinkish fleshy tissue in the toilet after I peed. But no cramping before I passed it, and no urinary symptoms, like burning or hurting when I peed or ANYTHING, really. I didn’t think to take it out and inspect it, but it kind of freaked me out. Like I said, I don’t remember that with my other kids. Unless I missed it somehow. Is it possible Im pregnant? Should I maybe retest? Has anyone else had anything like this? I haven’t been able to find too much about it when I Googled. I’m just wondering if anyone else had experienced it