i am a male, around 30 days ago me and my girlfriend was having good time together and get aroused. so we ended up being naked, i did self masturbation and ejaculate on my hand, which i immediately wash it. however i continue to fingered her. i am afraid she might get pregnant because this events occur multiple time, which im unsure whether i cleaned my hands all the time. she already on her 40th day from her last period.