I have regular periods and never missed one cycle.
I had a stressful months due to work, last month until now (due to late period).
I am fairly sure condom used by my partner was used correctly.
I know that I had ovulation this month as I noticed the discharge.
I have not experienced any signs of pregnancy (although there's possibility some never experience it until much later)
I am not overweight or underweight and exercise at least once or twice a week.