Hello
Thanks for writing to us with your health concern.
Duromine cannot terminate a 
pregnancy.
You have already had unprotected sex so many times.
Since you did not take the birth control pills too, you are definitely at risk for a pregnancy.
If it has been less than 120 hours since 
unprotected intercourse ( the first act ) , you are in time to take the morning after pill.
ALso, if it is an early pregnancy, upto 7 weeks, it can be safely terminated by 
medical abortion pills.
Just take an emergency pill if you are in time .
In case you are out of the range, then wait until you skip your expected period.
If you miss your cycle, take a pregnancy test.
Consult a gynecologist for termination.
All the best.
Take care.