Me and my gf were in mood and we have done something called foreplay. While doing foreplay, I have done fingering by putting my left hand in her vegina. My gf touched my penis and after some time, a small amount of sperm came out which I released in bathroom. After washing hands only I have touched my gf vegina. Now we worried about chances of pregnancy. I would like to mention that, I haven't done any penetration . Only we went under foreplay . Please tell us the precautions for not getting pregnant as we are afraid of that. Regards