hi everyone I am 5 months pregnant my baby is in low lying placenta (posterior position).In my anomaly scan my baby all body parts and heart beat is all clear and visible. but my baby heart is not showing perfectly because my baby head is in downward direction and from back side the spine is covered so not showing clearly " doctor says .its my 4 th day visit to anomaly scan but no use still my baby not showing the heart I continuously walking, drink coffee and drink water but it's all not working what should I do