My beardies been diggin nonstop! Is she ok?

  My beardie is 2 yrs old n she layed bout 23 eggs a month ago. A week ago I bought another nearside which is a yr old and the owner said that she was a girl. So lately my 2 yr old beardie been digging n scratching her tank. My question is what could be wrong with Lia or could she possibly be pregnant?
it's normal for beardies to dig anyway but one of the ways some breeders tell that they're egg bound is the movement of sand and substrate so it could well be that she is pregnant if there is a male there.