Pregnant?

Last night me and my partner had sexual intercourse and both of us "came". (Used a condom, and i am not using contraception) But during my partner felt as if something was wrong but thought it was all in his head :/

So today i was i happened to have a look at the used condom and i 2 holes (tiny) and the sperm had all leaked out of it by the time i got to it (sorry if this is gross).

Is there a chance i could be pregnant and if so can you tell the next day by experiencing certain symptoms?