Primolut after intercourse to prevent pregnancy?

Patient: Hello, I’m 22 years old and I live in a country where Plan-b and abortions are illegal. Last week I had unprotected sex but ejaculation occurred outside and around the vagina. I freaked out and took 2 tablets of Primolut for 4 days. My period is not late (still due in 9 days) but I’m experiencing slight cramping after finishing the Primolut. What are the chances that I’m pregnant? Oh and the intercourse occurred 1 or 2 days after estimated time of ovulation.