My stomach is so sore and tender around my navel to touch. It hurts if anything bumps it. I haven't done any kind of exercise that would make it sore. I have had slight "unexplained" weight gain over the past few weeks. In the back of my mind a couple weeks ago I thought there might be a chance I was pregnant, but I got a period so I dismissed it (in case that makes any difference). Do ya'll have any ideas on what might be making my stomach sore to the touch? It feels kind of hard in the sore areas.