You can sleep on both side ..

Sleeping on sides is advisable esp left but you can switch from time to time. <a style="text-decoration:none" href="http://app.babychakra.com/article/2774"><b><font color="#3b5998">Sleeping Positions During Pregnancy To Help Reduce The Discomfort</font></b></a>

Hi<br> Yes preferred is left but can swap sides. Dint lie on your back