Hi. I have not had sex with my boyfriend, but he has fingered me. We are extremely cautious and both wash our hands before and after we fool around with eachother. My period is late by 14 days, but I think that my change in schedule is delaying it. I have just started school 3 weeks ago, adding more stress to my life. Is stress and change of schedule really that big of factor where it can delay my period for 14 days? I'm just being a nervous teenager at this point, so any reassurance would really help! Thanks!