Thanks for the query.
You should not take tablets with out consulting the doctor.
So you once consult gynecologist, get examined and go for ultrasound
By this the working condition of the ovaries can be identified.
And after that you can go for follicular study
which is the better method than the two methods you used.
After that you can plan unprotected intercourse
around the time of ovulation according to the follicular study.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429