u/EntrepreneurNew4739

I was home alone with my girlfriend and we had sex twice. The first time I came, I checked the condom with water and there were no leaks. After washing myself, we had sex a second time with a different condom. I didn’t came the second time because we were interrupted by my parents coming home, and because I was in a hurry, I forgot to check it for leaks using water.
Is my girlfriend safe from pregnancy? If it had been broken, would I have noticed? And if it was broken, is there a risk that she could get pregnant from precum or any leftovers from the previous session?