Do these symptoms mean im pregnant?

Well me and boyfriend had un-protected sex 4 weeks ago. My breast are so sore right now and feel like they heavy and my nipples look dark and little bumps on them and my stomach feel like its hard and sometime when I eat something and then I burp vomit...

come out my mouth and every morning when I woke up my lower back hurt and my breast look so sore.

You could be...or it could all be in your head. I was scared I was once but it was all in my head (thank goodness). So if you're worried, go to the drug store, get a test, and take it...or go to the doctor.

thats some symptoms well good luck C= hope your happy if you are C=

Best bet is to take a pregancy test, if it comes back negative leave it and see if the symtoms get worse, if so you might want to go to your chemist or GP to see if there is a probelm.