Hi and welcome to HCM.
It can be anything and nothing. Ultrasound
is very operator dependent diagnostic method and results are usually hard to interpret. You ll know everything after new us. In this gestational age
heart is difficult to be evaluated so repeated ultrasounds in 26+ week would show it better. I am sure that nothing is wrong with your baby, heart defects are usually fatal in early embriologic development.
Wish you good health.