I was eating Diane35 to regularize my periods, I started taking it from 26th July. On 3rd August, I had sex with my husband and to avoid pregnancy I had an pill tablet and continue eating my regular dian 35 pills. I have finished the dose of the pill (diane 35) but still i haven't had my periods. I did test my pregnancy on 16th August (which is 13 days after sex). Could you please help me with this. I'm scared for not having periods.