I know that if this is accompanied by bleeding I should be really worried but it's not. That being said when I stand it feels like I have pulled a muscle in my lower abdomen right above my pelvis. It's kind of uniform, that is that the pain is on both sides not just in one spot. It is extremely painful! Even when I try to avoid it by standing up slowly I feel a slow "tightening" feeling in this area, but still like a pulled muscle or maybe an overstretched muscle. Can anyone give me any info about this?