I had protected sex 2 weeks ago & my period is supposed to be due today. the past 2 days i wore pad and have brown discharge & blood only when i wipe?

Pregnancy worries?: A urine pregnancy test, done correctly, gives a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), 1 week after missing a period, or 1 week after getting a "weird" period . If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test.