Average length of her periods is 25 days. She had her last period on 1st May 2017. We had protected penetrative intrcourse (with condom on) on 12th night, the day of her ovulation. In the heat of the time, she was riding me, and condom came off, but only a tip of my penis was inside. In addition, the tip was covered with condom, condom slipped off from the base only while the tip was covered. As soon as we realized this, we stopped. The next day, on 13th May 2017 morning, she had an emergency contraceptive pill (call unwanted 72 in India).
1. The condom was on
2. She was ovulating, probably, on that day, as per the period tracking app information, which has data of more than last year and a half
3. When she was above me and stroking, the condom slipped off due to friction, but the tip of penis was covered, which was inside her.
4. I did not ejaculate during this session, at all, for sure.
5. She took emergency contraceptive pill (1.5mg levonorgestrol), the next morning around 9am i.e. within 12 hours of the incidence.
Can you please guide us about the chances of her being pregnant in consideration of the above points? I am desperately waiting for your answers.
Thank you so much.