Can someone tell me what this is on my ultrasound in the area that I circled in blue?

Ky 8-15-17👼🏼 & 10-28-17👼🏼 Pregnant with my🌈💕

I keep looking at my transvaginal ultrasound I can't figure out what the heck that area is that I circled way down underneath baby's sack to the right. And it almost looks like there's stringy things in that area too? What is that?