Sleep on sides.. Both sides equally to avoid any sort of pain.. It's a myth to sleep only on one side.. The pillow for head should be lesser in height.. Keep one pillow for back and one between ur groin region

<span style="color:#3B5998;"><b><a href="http://app.babychakra.com/article/2774">Sleeping Positions During Pregnancy To Help Reduce The Discomfort</a></b></span>

Try sleeping on your left side ..