it would not be very likely that you and your partner would having an unintentional pregnancy based on what you have shared. first she is on a very effective contraceptive (if she takes it! ) and second you did not ejaculate in the vagina. while "pre-cum" tends to have active sperm and it only takes one sperm to do the deed when a woman is ovulating i think you can relax. be careful. remember that the human body is designed to get pregnant not to prevent it so practice safe sex. always. and remind your partner that the pill is only effective if she swallows it. think about wearing a condom even when you are messing around. that extra layer of protection tends to be important.
can pre-come on hand and very light fingering (penetration around lips) get a girl pregnant? . after the situation was over. vagina was washed. man touched penis then vagina. pre-come exposed to open air. girl is on pill. missed 2 pills in past week. (apologies for paranoia)