Over 8 years ago I had a tubal ligation. For the past 2-3 weeks my breasts have been sore, enlarged, etc. Also, my nipples have been in a constant state of extreme erection and milk bumps are popping out all over my areolas (sp?). My stomach has been bloated for 2-3 days, and my last period (more than 2 weeks ago) lasted about 2-3 hours total and then stopped. The bleeding was very light, and my periods usually last 5-7 days and are very regular. Is it possible that I might be pregnant? It is my understanding that it is rare, but I do know it can happen.