Hello, I am worried that I might be pregnant. About two months ago I lost my virginity. The boy wore a condom and I do not believe it broke. Although, I have gained a little over 4 pounds and my last two periods have lasted maybe 3 days, but the blood was brownish and very light. Also every now and then I am experiencing a light pain in my lower abdomen. I have taken 2 pregnancy tests and both have been negative. Is it possible I am pregnant? Thank you for your time.