I got with my boyfriend 4 months ago. During this time we had unprotected sex three times. After the first month I had a pregnancy test and it was neg. But for the past three months i've had extremely light barely noticable periods and no severe cramps. This is very unusual for me as my periods are normally heavy and painful. The colour of the blood has been dark brown. I want to know if I could still be pregnant even though i'm still having periods? Please reply