Helppp (graphic photo) passed big pink tissue but no bleeding

Jqadri

I'll be 13 weeks pregnant Tuesday with twins. I've been cramping and passing pink mucus every day, my doctors have no answers. Last time we checked 9 days ago babies were fine on u/s. This morning I felt something coming out so I ran to the bathroom and that is what came out. No bleeding, on/off cramping like I have had for 2 weeks. I called my doctor told him i passed a pinktissue a few inches long and they said to come in tomorrow to be checked.

Has this happened to anyone, or are familiar with what it is? I feel like if I miscarried I'd be bloody(I've miscarried previously and it wasn't anything like this)