Suggest Remedy For Unwanted Pregnancy

Hi, I am married for 4 weeks, and am 5.4 weeks pregnant, so wanted to end it as it was too early. The doctor gave me a shot to stop the growth and prescribed me to take 8 tablets, 4 on each night vaginally after the 5th day of the shot to cause abortion. yesterday night was the second night i took the 4 tablets. Till now nothing has happened. Do i need to wait more?... any suggestions would help.