I would wait to see if you get your period and if not then take a test.
If you dont want to have a baby you should be on BC and using protection EVERY time you have sex. I was on the pill and fell pregnant, nothing is 100% but using nothing is asking for trouble
no i was usin protection but not the las 2 times i had sex
You said you've been using protection for 2 or 3 months but said the sex was unprotected? Are you on BC?
If you had unprotected sex 3 days ago it is possible IF you aren't wanting a baby use protection. Thats my advice. Good Luck either way.
ANYTIME you have unprotected sex you can get pregnant. So YES, you could be pregnant.