First Prenatal Visit - 7wks

Went to my first prenatal visit today. The nurse practitioner did a vaginal u/s. We saw the gestational sac, but no sign of yolk sac/fetal pole. Has this happened to anyone? She said my gestational sac is measured to be 7 weeks, so I'm not early. They are doing beta tests to check if everything is ok. Scheduled an ultrasound next week and praying that the yolk sac/fetal pole shows up. 🙏🙏🙏