Two weeks ago, my girlfriend and i failed to have sex, no penetration, i didnt even ejaculate, but i gave her plan b a day after incase of pre cum, she also just had her period today. how likely is it for her to be pregnant based on those factors?

Same Q/A: The excited penis is secreting sperm in its fluids throughout any intercourse. Concentration is less than in ejaculate but enough to trigger pregnancy on any day of a woman's cycle.If there was no penetration risk is negligible. If she took plan B within 72 hrs it is unlikely she would get pregnant, but I would take other precautions in the future as your luck may not hold up over time.