[Lizzie]

There are several reasons you could have a late period. First off, you are only 15, so your periods could naturally be a little bit off. It might just be hormones messing with your cycle a little bit. Another reason is that you have stressed yourself out so much over this pregnancy issue you have actually made yourself skip a period. Too much stress over anything can cause your cycle to be off. And finally you could be pregnant. While you have used protection, anytime you have vaginal intercourse there is the possibility of getting pregnant. I would say wait another week and if you don’t get your period you should take a pregnancy test just to be safe. You can buy them over the counter at any pharmacy or grocery store.

As a side note: if you are so afraid of getting pregnant, why are you having sex? Being ready for sex is not just the emotional and physical readiness for the act of sex, but the ability to take on the responsibility of the consequences of sex like if you get an STD or get pregnant. If you are so worried about getting pregnant that you cause your period not to come, perhaps you need to evaluate having sex in the first place. Sex should not stress you out that badly. I think you need to talk to your boyfriend about this, let him know how you are feeling. You also need to talk about what you would do if you did get pregnant. You should always have a plan with someone you are sexually active with. While using protection is very smart, there is no such thing as 100% protective contraception.