Pregnancy pillow

Jamie
So I am 9 weeks and for abou the last week exhaustion has hit me hard, but I am having a hard time getting comfortable when I sleep. What are the benifits of having a pregnancy pillow vs using a regular pillow between your legs? I really feel like I need back support when I sleep but I don't know if it would be verifiable to get a pillow.'
Thanks for you help and input!