I just found out someone i shared a cup with was diagnosed with bacterial meningitis 10 days ago. so far i have no symptoms. am i past the incubation?

Low risk, no worries: Your risk probably is very low from this, and we're all commonly exposed to meningitis bacteria anyway; they're commonly carried by healthy people. Still, this could have slightly increased your risk. You should ask your doctor, or call your local or state health department and ask whether your exposure was close enough to justify preventive treatment; or to get the meningococcal vaccine.