My period was due Wednesday, June 10th and I got my usual cramps and mood swings but no back pain (I usually get this pain/tiredness in my lower back a day before my period) but I never got my period and now it's 6 days late and cramps are pretty much gone but this morning I woke up with back pain and I don't know if it's my period coming or if I was sleeping in a weird position last night. Also, I'm a virgin but me and my boyfriend have dry humped a few times, but never up to the point of orgasm, and also, Sunday, the 14th, I gave him a few blowjobs and I don't kmow if it's possible to get pregnant from swallowing sperm. Am I pregnant or has this stress just delayed my period and will come any day? I need help, I'm 15 and can't be pregnant! Please help, thank you!