Could Pain In Lower Abdomen, Mood Swings And Craving For Food Be The Symptoms Of Pregnancy?

hi there. im having some symptoms of being pregnant, sore breasts, getting sleepy mre, pains in my lower abdomen, getting very moody and craving for foods i dont eat often. im not sure if its a bad period as mine are very unpredictable and ive been told i have polysistic ovaries. am i pregnant?