7w scan? Is this normal?

Kenna • CNA 👩🏼‍⚕️ bfp 04/02/19 - due 12/10/19 💙 born 11/16/2019 🌈 surprise bfp 02/08/20 - due 10/11/20 💙 born 09/16/2020 Mom to my angel baby 👼🏻 Endometriosis, hypothyroid, hashimoto, inflammatory arthritis & connective tissue disorder

Does this look like a normal 7w scan? My sons looked a lot different so I’m just curious 😅 this one is an abdominal

I was told it’s only one baby and the circle is the yolk sac. Just doesn’t seem like the baby is 7w 😯 looks smaller tbh (I went to a free place, not sure when I’ll get an ultrasound from my OB)