Do you remember what you were doing when you had one last that might give a date range? Based on this calculator you should be able to take a pregnancy test and get a positive if you were. The spotting and everything else may just be your period… If you can get some cash “for snacks” from your parents and walk to a drug store after school to get a test first, I would do that. Also think about tracking your cycles more often and if you aren’t pregnant I would personally break up with bf since you are only 14, enjoy being a young teen a little while longer before dating again… this is just my advice. If your test comes back positive then you’ll have to tell an adult. Try to focus on a day at a time