Help?

Hello so lately i been so moody like i feel mad sometimes and sometimes sad etc could the moody thing be a pregnancy symptom? Yesterday i started crying for no reason because my cat doesnt love me no more like she's been biting me everytime i touch her and i started crying because of that my bf started laughing because i cried because of my cat. Plus i been feeling so tired too but my period is supposed to come in a week what do you guys think? Did this happen to you in very early pregnancy or no??