so im asking this again because im not realy getting all the answers i wanted.

I have heard that girls can still have there periods while they are pregnant, but they arent realy periods.
How would you know the difference?

I also thought i was pregnant...i first had the symptom of really sore tender fuller breasts...usualy that happens before my period but it was worse this time. i was also constipated and had a few headaches. Then i started my period on the 22nd and its my 3rd day on it now...its been pretty normal except for sharp pains on the side of my stomach that i usual dont have. My breasts are still sore and the pain didnt go away like it usual does, and ive been more hungry than usual...i feel like ive been eating everything! and i get lightheaded and ive been realy tired lately.


I also took a prego test when i started and it was negative...but can you take a pregnancy test without it messing up if you are bleeding?
i would like answers to all the questions.