The only way to know if you are pregnant or not is by taking a pregnancy test, either an at home pregnancy test or a pregnancy test at your doctor's office. If your period is late, then take a pregnancy test. Otherwise try not to stress yourself out and also use this as a learning lesson to always use protection and be careful. I don't think you want to end up pregnant at 14.
symptoms are not very reliable and don't prove pregnancy.. only a test can confirm that.. there are chances of you being pregnant but it's too early for any conclusion even for a test.. wait for your normal period to arrive.. if late take a hpt with the first morning urine sample.. good luck
Considering You had sex not long ago and You have no other children I would doubt that You would be experiencing pregnancy symptoms already. However if You had un protected sex and are worried perhaps it is time you start seeing your doctor and than maybe talking about some form of contraception
did you use protection? first, i wouldn't recommend looking up symptoms because it makes it easier to get things in your head and make yourself feel things. take a home pregnancy test. i sure hope you're not pregnant, you're just a baby yourself. if you're having sex you need to be on birth control.