My partner had her periods on 11th Oct, on 16th around 7 pm we had unprotected sex (that was the last day of her flow). On 18 oct she took an ipill in the morning. On 25th October she had her withdrawal period which lasted for few days. Since her withdrawal periods had  come within a week, we were pretty relaxed. Its now been over a month and 15 days , she hasn't received her periods . We have been sexually active throughout this 1 month and 20 days, but protection was used everytime. Today I got to know that since few days, she started having white discharge through her vagina. When will her periods start doctor? Is she pregnant? I am very worried as both of us our completing our UG