Hip/Tailbone Pain?!

I've been having hip pain since the week before I found out I was pregnant, that's when I knew something was off and made me want to test. Soooo here I am at 13 weeks and I'm dying! Not only hip pain but now tailbone pain that gets so bad I can't even function throughout the day. Doc says I'm just one of the unfortunate few and that it's nothing to worry about. He suggest sitting on a donut, a pillow in between legs to take pressure off and a pregnancy hip belt. Has anybody else experience horrible hip/tailbone pain so early? If so, what did you do for relief? I am miserable and going to back to work soon and freaking out how I'm going to manage!