Tell me if we did everything right, if you say something wrong.
During sex, our prejudice broke and I ended up being a girl. She quickly got up and went to the bathroom and washed everything inside. Second, I went to buy contraceptive pills "novit". Everything happened today. Literally 30 minutes after intercourse, she took the first pill (a total of 21 one per day) as scheduled.
Please tell me. What is her chance of getting pregnant? The girl 13 years.

Do not play like that. But you, with a probability of 50%, will have a clever, sharp, not afraid of water and chemistry toy...