condoms are never 100% and let's be honest pull out while wearing a condom rarely happens. All it takes is the smallest puncture and your swimmers are off to the races! Condoms reduce the chances and also the chances of getting an STD but it is NOT 100% protection
Yes, unless you get your tubes tied and burned there will always be a possibility of pregnancy. It decreases if you wear a condom and so does he, and it gets even smaller if he pulls out, but pre *** could always pose a potential problem.
YES! It can happen and does happen a lot. The wrapper is not 100% safe, therefore draining your sac inside her can often lead to pregnancy through a simple tear or improper on-boarding of the condom. Check yourself and think before you act.