My Girl Friend Is Virgin And We Didn't Have Sex

My girl friend is virgin and we didn't have sex with penetration but we were kind of playing without protection until I ejaculated outside. She was lying on my stomach on that time. In the other day she menstruated. After one month she menstruated normally again on the correct days, the same characteristics and same amount of blood and she feels nothing strange with her body. Is there any risk for her to get pregnant? Its almost completing 3 months without nothing strange but this still bothering me.