Can I be pregnant?? Help please first timer

Hi my name is Jenny and I don't know if I may prego. My last normal period was on April 25 through April 30th and last month on May 25th 2015 I got some like light period I was bleeding not that much then after I was just spotting took a pregnacy test on June 1st and it came out negative what should I do? My breast at times feels tender I been feeling a lil but nusious headache comes and goes a lil dizziness from time to time. Idk if I should wait help me please I wish I am prego thank u so much please help what do u guys think??