Is Conception Possible With Protected Intercourse While Taking Pcod Treatment?

doctor,i have pcod and have been undergoing treatment for the last 5 years or so..i am unmarried..but recently had a protected intercourse on 22 april with my fiance..i have been taking aldactone50mg as prescribed by my doctor..this month's course is just over though there have been some irregularity in taking the medicines..the course of thie running month got over 6 days later than what they should have..i had my periods on 5th april last month but this month its still not happened.. i am really scared and worried if there has been a conception because of the intercourse though it was protected..please help me..i am 24 years old,my height is 5'5'' and i weigh 70 kg.