Period lasted only 24 hours, was mostly brown, came 3 1/2 weeks after last one. bad acne. neg pregnant test day after bleeding stopped. pregnant?

Can do a urine test: 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 (when conception might have occurred), or 1 week after missing a period. An ob-gyn doctor can evaluate any persistent or worrisome symptoms.