I was told i had slightly low platelet count does that mean i have leukemia?

Not necessarily : There are several components in blood tests. The various components vary in ranges due many causes. Just because one component is low does not necessarily mean you have a certain disease. Your physician will take into consideration all of the components in the test done to determine if there is something to worry about. If you have a concern discuss with your doctor.

No: Temporally, slightly low platelets, that are still more then 100, 000 usually have little significance. You can see that as a consequence of viral infection. If they remain low and are trending down think liver disease or auto-immune problems, and medications. In the absence of other abnormalities it isn't a harbinger of lymphoma. Best to to with your doc about it. Good health.