Is this ultrasound looking normal?

I had an ectopic back in January and so they wanted to see me early. My hCG today at six weeks was 7300 which they said was great. The first doctor could not find a gestational sack and then had someone else come in to look and she finally found it! She didn’t say anything about it not being in the uterus, she said everything looked good but I’m still wondering is it possible to have a gestational sack and it not be in the uterus? I just find it odd that the first doctor couldn’t find the gestational sack I know it’s really small at this stage of pregnancy but I still find it weird that it took a second doctor to find it. There is a gestational sack and a yolk sac