Is it okay if i do orbscan 6 days after i stop using contacts and lasik 10 days after i stop using contacts. ?

Generally ok: Depends on the type of contact lens and if you sleep in them. May require more time. Importantly prior to any treatment is to be sure the orbscan is normal for the procedure you seek.

Assuming that you are wearing soft contact lenses - then having preoperative measurements 6 days after stopping lenses is felt to be a good time period. The tests will typically be evaluated to ensure they are accurate. Assuming the preoperative tests are OK - then having LASIK 10 days after wearing contact lenses should also typically be OK