I have brown discharge&spotting and abdominal discomfort for last 3 days since i am due for periods. i haven't experienced this anytime before. is it a sign of pregnancy? i am sexually active but used condoms. preg test negative result - 2 days back

Maybe not: It can be hard to tell if a woman is pregnant because some of the symptoms seen in early pregnancy can also happen in non-pregnant women. A urine pregnancy test gives a reliable result if done correctly. One can test about 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period. An Ob-Gyn doctor can evaluate any persistent or worrisome symptoms.