Is this the gestational sac? TW; photo

[KBP83]

I am currently miscarrying and passed this…would this be the gestational sac? I
At a scan just over a week ago the sac measured 5 weeks 5 days but was empty 😔

It is possibly in there, but that is a lot of tissue, so is mostly lining, the actual sac is tiny at that gestation.
At 6 wk my pregnancy sac was pink and a little smaller than the size of my little finger nail, it’s around 6mm, the fertility nurse confirmed it (ivf) but it did come out with a lot of tissue like yours.
So sorry