2 weeks pregnant

ok i just like im very confused and i need some advise from woman that has been throw this ok now im 19 years ol and i dont wanna be a pig or anythin ok i had sex last week n i didnt use one i know im stupid but its been a week and my boobs hurt i threw up lik 3 times n im hungry all the time and im bloated all the time n i kno its to early to tell but i just really dont kno wat to do . i need help !