no baby found on trans V

Hello mommies, im supposedly 7weeks now nag pa trans vaginal ultrasound ako kahapon to find out na clear siya huhu. Walang laman. After that nag pt ulit ako nag positive siya. Anyone with the same case? Is it early pregnancy kaya wala pa. Pero last mens ko kasi decemver 8 pa.. Kaya ng bilang ng fovtor 7 weeks na daat. Help