I WENT FOR AN ULTRA SOUND,THEY SAW MA YOKE.BUT NOT HEARING BABY HEARTH BEST...WHAT DO YOU THK IT IS?

i have to go bk in 2 days time for better resuts...hope they do nxt time.they say maybe its too young or the baby drop......am trying no to worry too much....is there anythg i can do....they went to the dr cause i had some discharge after i life a clothes basket of clothes....i hope my baby is ok