6 week U/S

Erin

I just had an abdominal US. I was surprised they didn’t do a transvaginal US being that I’m not too far along. I thought I was further along but based on US baby was measuring 6weeks/4 days. They were unable to see a yolk sac. They want me to come back in a week to check viability of baby. I wondering if anyone else has had similar experience and what was the outcome.