Hi, Iam Rizwana And Iam 10 Weeks Pregnantmy Last Utrasound

Hi, Iam Rizwana and iam 10 weeks pregnantmy last utrasound was on 8 weeks and the result was the fetal heart rate is normal but i was having perisac collection measuring 19×7mm at fundal aspect of gestational sac my doc said nothing to worry and she gave me duphaston tblt and choriomon injection today i visit her she just checked my babies heart beat and said nothing to worry heart beat is their but she did'nt said me about perisac now what should i do