I have recently had unprotected sex and just changed birthcontrol 2-3 months ago. i am now two days late for my period and have pms. am i pregnant or?

Pregnancy Anxiety: I understand your concern. The variability of menstrual cycle length is highest for women under 25 years. Having PMS seems to indicate that you are not pregnant. See Gynecologist if you have nausea in the morning, craving random foods, sensitive to smell, small amount of spotting or vaginal bleeding, tender, swollen breasts, fatigue, or mood swings; take Pregnancy Test; discuss birth control.