Anytime you have unprotected sex you could be pregnant. If you don't want babies.....use protection always.
Yes, you could be. If you don't know the answer to this question, you're either too young or too stupid to be having sex. Sorry to be so blunt but sex is for the mentally mature.
Yes, you're pregnant. Congratulations! Think up of names now. One for if it's a boy and one for a girl.