I am very concerned about the odds of my girlfriend being pregnant. I am a virgin, and my girlfriend is as well. The other day, however, we attempted to have sex. I put in just the head of my penis and pulled out. This was only for roughly 30 seconds. I didn't cum, and I don't know if there was any precum on my penis. I had ejaculated the day before, but I had urinated many times before then. What would you say the odds are of her being pregnant? Thank you.