I am not sure if you can help me or not but I have always had irregular periods. My last period last about a month in a half. A week after I had sexual intercourse and used the withdrawal method with my boyfriend. My boyfriend and me freaked out and got a test two weeks after the sexual intercourse and it came out negative but lately I been feeling really tired and feel pressure on my abdomen. I lost weight and been urinating more often. I have my doctors appointment until Octobe 5th. However I'm concerned if there is any chance I can be pregnant even if the test came out negative and I'm irregular