You can test for pregnancy using a urine-based home pregnancy test. This is probably the best way to know if you should take another dose of Clomid, or not. More information follows...
Clomid, or Clomiphene, comes as a tablet to take by mouth. It is usually taken once a day for 5 days, beginning on or about day 5 of the cycle. It sounds like you don't understand how to use Clomid as your doctor prescribed it, so ask your doctor or pharmacist to explain any part you do not understand. Take clomiphene exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.