Am I are not?

i missed my period the whole month of march it did not come at all. It came in April but it was late. It was very light and spotty my question is, is it possible i could still be pregnant. I took a test it was negative, but everyone said i tested too early i have not tested since then my appetite is off the hook I eat everything and i can not get rid of that bloated feeling. You know that feeling you feel right before your period i feel like that all the time. HELP!!!!!!!!!