According to regular time this 17-18th is my periods time. But I don't have periods this time. One month before on 18th September, I was in period and I had anal sex. The condom get failure so ejection took place inside. I took unwanted 72. After taking unwanted 72 I didn't face any pre-bleeding or any symptoms of taking unwanted 72. Now one month has passed, 17th October was my periods date. And still I didn't have periods. Please suggest me what to do. Any chance of pregnancy? Should I take pregnancy test?