Thanks for the query.
Some amount of variation can be seen in the growth of the ovarian follicles month to month.
Achievement of sufficient size is more important.
This time after taking tablets for ovulation induction
you can go for HMG injections
with your doctor's advice which can help in proper growth of the follicles.
After that you plan unprotected intercourse
around the time of ovulation which will increase the possibility of pregnancy.
Maintaining of normal thyroid levels are also important for fertility
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429