i dont have an appendix, it was removed when i was 13....
remember not all home pregnancy test is not always correct ...i think you should go to take the blood test at the hospital to confirm if your pregnant or not...because it happend to me i took a home pregnancy and it came out to be positive..i decided later (couple weeks later) to go to the hosipital and it was negative i had a huge relieve....but anyway i think you should check at the hosipital..
Pay attention to the pain on your right side. If it is actually on your side, not near your lower abdomen, it could be your appendix.
Anyway as far as pregnancy goes- retest in a few days! Since pregnancy symptoms are so common and can be related to any number of things you can't base anything on symptoms alone. If you know when to expect your period test when you are due.
oh and the past 3 or 4 days i get this dull pain in my right side.... you know the feeling when you have been running for a while.... it feels almost identical to that but i havent been running