I stupidly allowed myself to enter my partners vagina without using a condom, I thrust 3 times and then came to my senses, withdrew and used a condom the rest of the evening. I had masterbated approx 2 hrs earlier and had passed urine a number of times. Is there a high chance of her becoming pregnant? should we use emergency contriception. She had an abortion approx 2 months ago with a previous partner will this have any effect of heightening the risk of pregnancy.