Empty sac 😔

So scared right now !!

Due to irregular periods I've no idea how far along I am.

I had a scan and transvaginal at the early pregnancy unit this morning. They've found the gestational sac measuring 6w1day but it's empty. We're hormone levels were over 2000 last Friday.

I've got to go for another scan in 2 weeks.

I'm so scared has anyone had this happen with a positive outcome?

Also when I found out i was pregnant only last week my lines were quite strong so hoping thats a good sign