May be, if you ejaculated over her vagina. However if you did not cum, then no chance, my love.

I don't understand my dear, why do you want to take the risk, when you have an easy way out. Theoretically, if you don't ejaculate inside the vagina, the possibility of pregnancy is nil. However, during intercourse, you are in the excite state of mind and may not be fully in control of things happening. Remember, even one single sperm may lead to pregnancy.

Practise safe sex; use condoms. Sounds like a cliché, right??? But it makes sense..