Hello doctors, my girlfriend and I had unprotective sex. from my standpoint, i was sure that i withdraw and ejaculated outside of her so i assume that it is safe. however, i doubt it. therefore, for extra measures, i bought her nordette which she is taking now at 4 pills within 120 hours of unprotective sex following 4 pills after 12 hours. is it the right thing to do? am i in the right track in here?