I am a bit shy to answer this, but from what I've read, if your pregnancy is normal, it's usually fine. But please ask your gynac once if you are worried.
Hormones make you crave weird foods and well, other things too! It's generally safe unless your doc told you to avoid it due to some complications. Enjoy your chocolates and relax.
I totally understand your hesitation in asking this, love. Your body goes through so many changes and hormones are high! Just listen to your body and go slow.