I'm 41 yrs old and had a tubal ligation done 10 yrs ago. My lmp was Sept 5 but I spotted a dime sized or smaller amt on Oct 22. My abdomen is swollen and tight. I'm moody, gassy, extremely tired, have heartburn and headaches. I haven't noticed a change in my breasts but I have had an augmentation done. I have gained weight which is hard for me to do. I took 2 home pregnancy tests around the first of Nov but they were negative. My boyfriend said that he thought he saw a faint line on them but I didn't. Not hard to believe because I wear glasses. Oh, I also get dizzy spells and lose track of what I'm doing at times. Could I be pregnant?