No need to say "thank you", but you should know the answer to your own question if you are old enough to be having unprotected sex. Any time you have unprotected sex you run the risks of getting pregnant. If you do not want a baby, then please use protection. It's that simple.
I'm not thank you for your advice!!!
Probably not. If you DO NOT want a baby....then use protection!!! I cannot stress that enough.