Anyone????

Okay so I've been thinking I'm pregnant... I took a test last Monday the 17th it came back negative but I've had no signs of my period coming. My nipples have been very sensitive lately and my boobs look bigger than usually I've been very bloated I think I've peed at least 5 or 6 times in the last two hours. I feel nauseated and slightly tired. My lower abdominal feels weird but not like period weird... When I wear my jeans it hurts and its kind of bugging me... What should I do....