hi, thanks for using HCM. Minimum amount of white discharge is normal in menustral cycle which appears around ovulation time and before start of menstruation. as your discharge was around ovulation, which is normally seen. If you had more amount or abnormal discharge need to be evaluated. In menstrual cycle difficult to predict day of ovulation and use of calender method for contraception has more failure rate. As you have also taken emergency pill, chances of conception are minimal, but not completely safe. Pregnancy can be ruled out only through test for HCG. You can discuss with your doctor for better method of contraception. Hope this helps you, regards