LeeAnn,

You need to have her checked out by the vet to rule out a Urinary Tract Infection. Cats that start peeing in places other than their litterbox are trying to tell you there is something wrong.

Is she the only cat or are there other cats in the household? If there are more cats than just her, the rule of thumb is one litterbox per cat, to avoid problems like that.

Good luck and keep us posted.