My girlfriend and i had intercourse and used a condom as well as me pulling out before ejaculation with the condom but shes 4 days late when should we expect her period?

Since pregnancy is possible, obtain a "home" pregnancy test or a serum HCG test in two or three more days, to be certain about pregnancy.

It would be unlikely to I have a pregnancy occurs in that circumstance, but the condom and withdrawal method is not completely reliable. If she does not have her period in the next few days, I would do a home pregnancy test or see her gynecologist. Practice safe sex. Good luck.