Hello Doctor, I am 22 years old. I had my periods on 11th aug and completed on 13th aug after that on 17th aug I had unprotected sex with my bf for the first time he is not sure that whether sperms had entered in me or not so before 24 hours I had taken unwanted 72 (ECP) and immediately next day morning I had a very slight bleeding around 4-5 drops but also increased the frequency of urine now I am worried what are this symptoms for. Am I safe from pregnancy? If not then what precautions should I take to avoid getting pregnant. Please help me know by answering my query.