I think i am 16weeks pregnant but i dont want to keep the pregnancy can i end the pregnancy using medication ?

You can but...: You can use Misoprostol But only under the care of a physician.

Medical abortion ?'s: At "sixteen weeks" of pregnancy, termination is not done via oral medication. This age pregnancy requires surgical removal. See your gyn physician for a referral to a physician or clinic where such is performed, but do not wait much longer, as options to terminate may not be available.