The best thing for you to do is to see your OB/GYN doctor and see if you are pregnant. You sound like you could be. If it turns out that you are not pregnant, with as scared as you sound in your post, perhaps you may want to consider not taking this risk again until you have reached adulthood. If you are pregnant, that you have just welcomed your boyfriend to be a part of your life for the next eighteen years; that's longer than you have been alive at this point. take care
Yes, you should definitely take a hpt or better yet, go to a doctor or clinic for a test as soon as possible. I know it's scary to find out for sure, but waiting doesn't do any good. If you're not pregnant, you will be happy- and if you are, the sooner you find out, the better your options will be. If you don't want to continue the pregnancy, you may be able to take the abortion pill if you're under 3 months pregnant. After that, you must have the procedure done. I had an abortion when I was 18 and I never regretted it- it was the right choice for me. If you don't believe in abortion, you need to get good prenatal care and start planning what you will do.
Hopefully this is a false alarm... but if it's not, you will still be ok. Just find out what's going on, and go from there. If you have health insurance through your family and feel comfortable being seen there, that's good. If not, Planned Parenthood and Women's Health clinics are great, very supportive and nonjudgemental. And they also offer free or lowcost care, depending on your income level.
Good luck- and if you get a chance, post here again and let us know how you're doing.
I think you need to buy a home pregnany test right away. I mean, it sounds like your pregnant but, just to be on the safe side so you can act quickly.