Sonogram empty Sac

Lexyy • January 4th 2019💕✨👶🏽 December 8th 2020

Hey ladies. Over the weekend i found out that i was pregnant. I went to the OB today and they confirmed i was pregnant via urine test. The did the sonogram, but they only saw the sac. My doctor said its soo early and wants me to come back Friday. My anxiety is through the roof once i heard empty sac. Is there such thing as too early that nothing had formed in the sac yet?