head circumference

Ava

ladies!!

please help me, it's been 2 days since my ob told me my baby(baby girl) head is less than 2nd percentile at 22 weeks . I asked her what's 2nd percentile? what that mean?? she didn't answer me but she said we will do another ultrasound.

could you please help me to explain? is my baby will be healthy? or somehow not looking good?? first time mom so I don't know what do!! just crying all the time.

should i be concerned??!