I had sex with this girl and only went in for a few pushes the hymen(how I think is spelled) was not broken and I then ejaculated several minutes later through oral, and I had gone pee and showered before, could my girlfriend still be pregnant?

It's possible, just not the most likely way for pregnancy to occur. In the future, it would be best to always use a condom before there is any penetration. That includes before any ejaculation, certainly with any ejaculation, and after any ejaculation has occurred. It is not worth taking any chances.