late period

my period is over a week late now. I’ve been having cramps like I would if i was having it, in addition to feeling exhausted all the time, getting randomly extremely sick to my stomach, and suddenly violently sensitive to caffeine (I ordered a coffee with extra shots in it like I normally do and got so sick I had to cancel everything I was supposed to do that day because I was in so much pain and throwing up). the thing is, I’m a virgin. but my cycle has literally never been late in my life, even when my eating disorder was so bad that I should have been in the hospital. I’m not overly stressed and the only change in my life was that I went on vacation last month? I know it’s probably nothing to worry about but I just keep thinking about the horror stories my mother would tell me about how you can get pregnant from sitting on a public toilet and remembering that one time my legs were just too tired to hold myself in the squat position and I accidentally sat down LOL. any thoughts?