A late period certainly is one of the indications that you may be pregnant. You can be late for a period from stress or sickness too - and so don't rule that out. Sometimes you just have a messed up period - we all do - that's not that unusual. However, if I were you, I'd take a pregnancy test to know for sure.
You can get a FREE and CONFIDENTIAL test at a pregnancy center. You can look one up near you at this site:
Date Posted:01:05:38 01/11/08 Fri
I was 16 when i got pregnate which was 6 months ago...i was 3 days late an had all the same symptoms so i say Yes it is very possible...but to be sure you should buy a home pregnancy test an if you are,you should take your time thinking of your decision to keep it if you were thinking of abortion.Hope I helped!