Hi, Welcome to HealthcareMagic Forum.
You History suggests you have a Faintly Postive Test. When was your LMP? If you have had Unprotected sex between the 10th and 20th day of your cycle, you will stand chances of getting Pregnant. If you happen to miss your next Periods, wait for a week and then get a Urine Pregnancy
Test done using a early morning Urine sample which is the ideal sample and time. This should give you correct result. If the same thing repeats again and you have not got your periods, get yourself examined by a Gynecologist to confirm it.
All the Very Best, Take Care.