Thank you for you're answers....
It just seemed strange to me, because she had never done this before,
(We've had her since she was 3 mo.s old)
so I thought maybe it had something to do with her being in heat????
I will keep on eye on her, & if it continues more than another day or two I will get her into the vet to check for UTI.
Do they need a urine sample to check for this? If so, whats the easiest way to get that!?