Risk of pregnancy?

Dear Doctor,

I am a 36 year old male in the UK. This morning, I was in bed with my new girlfriend.( We had never had full sex before and had planned on using condoms for this.) Things got a bit passionate and I rubbed her backside with my penis and ejaculated. I did not penetrate her. She said she could feel some wetness near her vagina but was not sure if its her own  body juices or semen.

She normally has regular periods of around 28 days. Her last period started on 14th/15th January and finished 1-2 days back.  
About 6 hours after the incident, we went to the local pharmacy and took one dose of the emergency pill( Levonelle-Levonorgestrel 1500 micrograms).

Based on this what do you think are the risks of pregnancy? Since I didn't actually ejaculate inside her, and its the early part of her menstrual cycle when ovulation may not have happened, and she took the emergency pill within 6 hours, am I right in assuming that the risk of pregnancy is remote? Is there any statistics regarding this?

Thanks for your help

[Beautiful26]

As long as she took the pill within 72 hours of un-protected sex, she will not get pregnant. I have use this back up method (Plan B) before and it worked. Remember that this is not a regular form of Birth Control, and should only be used for emergency situations only. Hope this was helpful.