I have had my tubes tied for 12 1/2 years. About a month ago I had a spout with not being able to keep nothing down and diarreaha and sever stomach pain. Went to doctor and he thought viral infection and it continued for about 12 days. During this time i should of had a cycle but didnt it then came a little heavy but short figured it was cause of the illness. This month periodic spotting and very light over last few days and a weird swelling and hardening in my abdoman just under ribs. Over the last month I have taken 3 pregnancy test all negitive. Is it possible I am?