Where the heck is my period? Pregnancy through making out?

I realize the title is ridiculous. But my situation is getting ridiculous. My period is a week late. I have no sign what so ever that it's even thinking about coming soon. I'm 15, 16 in December, and I'm way past that "erratic period" stage in puberty. I've had my period since I was 12 and a half, so three years. I've been completely regular for nearly a year according to my memory. 28 days a cycle, same symptoms each time. The last significantly late period I can remember happened to me when was 14. Nothing significant has happened that would cause a late period. No major stress. No new diet. No change in exercise. No significant weight loss/gain. No medications unless you count a round of antibiotics. I have been sleeping a lot, not moving around much at all, and I admit my diet is awful but that's not really a new occurrence. The only symptoms I've had is thick discharge the is happening so much that I keep thinking my period is here when it's not, and a tiny, tiny bit of breast soreness that could only be happening because I keep checking for soreness. I am a virgin. I do make out with my boyfriend, all clothes on. The thought pre-ejaculate could have gotten through layers of clothing is just a ridiculous thought. But because I'm naturally a worrier, I keep getting "what if" thoughts. Could my period be late because I'm so obsessed with it coming? I think about it all the time. Could the antibiotics have affected it? Maybe my poor diet and lack of exercise could finally be contributing? I just need some help.

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Recommended Answer:

You will get your period. It is not coming because of all your worrying. The more you worry the later it will arrive. There is no way sperm could get through all of your clothes. BUT i would suggest buying a pregnancy test and taking it just so you can see that you are not pregnant? It will help you calm down so that your period can come.