Hi Dr, I M Sara Here.my. Period Is Irregular. I

Hi Dr, i m sara here.my. Period is irregular. I suppose to get my period 2 day before..but i hv not yet have it.one o my breast is swollen and my stomach is bloated.i m worried i my period is delayed.i yse to hv d this symptoms..but i hvg back pain..but i never received my period. My last first day of period on 31st January 2016 till 5feb.what should ido.my breast is soft. Iss it abnormal, I'm very worried doctor, need ur help.thank you.