Expecting for fetal cardiac activity

Hi 1st time here.. I had my 1st TVUS April 8th and results came ges sac and yolk sac seen plang and it measures 4 weeks... then i had my 2nd tvus today embryo seen na kaso wala pa din syang cardiac activity, i am expecting nasa 7 weeks na ko and my heartbeat na.. Anyone has the same result? Im happy embryo was detected, kaso nagexpect ako n mkkita n heartbeat ? nakakakaba kasi mghintay.. thanks everyone. Comments will be appreciated ???