Blighted ovum

vegan

So I was booked in for a MTOP today but when I went for the dating scan last week, it shows that I am pregnant and the gestational sac is there and measuring 7w4d, but there’s no actual feteus there...

They said normally a miscarriage happens on its own so I can wait.. or still have it done surgically at the hospital for free though because it’s actually non viable..

Has anyone had this happen?