I can't tell if my sister's bunny Amina is pregnant

She has been bunched up in the corner of her cage and all of a sudden she started scratching the bottom of the cage for no reason, she turned all the food out of her bowl and she doesn't interact with us. Are these signs of pregnancy??

****Karen Sez****
Well, has the doe been hanging out with a buck?
Do you think the rabbit is in pain? Otherwise, if the doe has been with a buck, she might be pregnant. A false pregnancy also occasionally causes rabbits to change behavior.