Tina

Can I just clarify that the morning after pill should only be taken after unprotected sex.  If you took it and then had unprotected sex again, there is still a risk of pregnancy. 

Home pregnancy tests can be taken as early as the first day of a missed menstrual period, or about fourteen days after conception. A blood test at a doctor’s office can detect pregnancy about six days after the fertilized egg implants into the uterus, and before a missed period. If you choose to take the home pregnancy test, take more than one just to be certain that it is right. If you want to be even more sure, then go see a doctor.

Next time, remember that it's always best to just use a condom just to be safe. You should also think about getting on birth control if you are having sex, that way you won’t have to worry as much about things like this.

Best of luck to you.