Did the condom break? You have to remember it only takes 1 sperm. Also, if it did break there is some that comes before ejaculation. I think it is called pre-ejaculation. But it does contain sperm as well. If it didn't not break, not sure how you would be.

Even if the condom doesn't break, pregnancy is still possible.

There are people on this site, and all over the world, that got pregnant even when using 3 different forms of birth control correctly.

No birth control method is 100%, so any time you have sex, even with protection, pregnancy is possible.

Now you get to play the waiting game. If you miss your next period take an hpt using first morning urine.

Good luck.

Possible, but unlikely. Many people use a condom alone as birth control and when used correctly, as in it being put on before any entry at all, it is a fairly good form. However, as was said, no form of birth control will be 100% effective, so there will always be a chance for pregnancy.