I have experienced an ectopic pregnancy before, but I'm not sure I am having one. I have had lower right abdominal pain, along with shoulder pain. My feet have been swelling up for a couple of days and now the bottom of my right foot is aching.. I am worried it's another ectopic pregnancy. Have been light headed and I threw up about 3 nights ago but haven't really been nauseous since, just going number 2 a lot.. Could there be another diagnosis since my legs are swelling up??