Hello. Me And My Girlfriend Had Sex Yesterday. At First

Hello. Me and my girlfriend had sex yesterday. At first it was unprotected for about 30 seconds or so. She gave me oral sex before and I cleaned the top of my penis of any fluids that were there beforehand. I peed before sex quite a few times and a lot of times ever since I last ejaculated. We then continued to have sex with a condom on. Is there a possibility she might get pregnant?