Sign of early pregnancy sign

I want to know if I am pregnant or just normal PMS symptoms. my husband and I are sexually active and we want a child. what i experienced these past few days are these: - i am having cramp on lower abdomen and back pain in 3 days including today - my nipples are tinggling painful - i haven't have my period (late) - no spotting. - my body doesn't feel so good cause my body temperature is quite high. it's not fever. it's just my body feel hot than usual. - sometimes at left of my lower abdomen i feel sharp pain in few minutes than it gone. - i did vomit but after i ate something and when i feel hungry someone please help me, cause this is my first time i just got married 2 months ago. i am quite new at this.