My girlfriend and I had unprotected sex. I did not penetrate as she was a virgin. I also did not then, but had just 30 minutes earlier. She was just a couple of days from her expected period. She "had" her period, but it could have been implantation bleeding? I'm not sure, but the bleeding lasted five days and from what she said was only a "little" light, but the right color. Could she be pregnant?
I think we need clarification. I don't know if you meant it the way you wrote it, but according to your post you didn't penetrate her but then you did. It can't be both.
I did not penetrate as she was a virgin. I also did not then, but had just 30 minutes earlier.
Penetration isn't needed to get a girl pregnant. It's rare, but it does happen, a virgin birth doesn't only happen in the bible.
But, from your post, it sounds like there was penetration, which increases the chances of pregnancy.