Been 4 weeks since i had my regualr 7 day period 28 cylce. i had un protected sex during those 4 werks can i be pregnant i have all early symptoms?

Yes: Do a test or have one done at a clinic or doctor's office. Also, if you agree that a pregnancy is not a good idea, NEVER have unprotected sex. STDs are another good reason to ALWAYS use condoms. Prove to yourself by being more careful that you are mature enough to be having a sex life. That's the most true part of reasons to wait - your well-being , the guy's and a baby's too (of course).