When you feel her tummy gently, do you feel what is like marbles in her tummy? That would be a sure sign of pregnancy. If you are concerned about this, or possible egg binding, be sure to put a lay box in her tank. You need a shallow box full of sand and soil mix, that she can dig into to make a nest.
10 months is a bit young, but I've heard it is possible. Just take the appropriate precautions to make sure that if she is pregnant, she can lay her eggs without any problem
Maybe she's just a hefty beardie
There's nothing wrong with that either. She's still growing so she shouldn't be limited from feeders too much yet. Our girl is about the same age and eats her crickets every day, though she is significantly slowing down.
Keep us posted!