Thanks for writing to us with your health concern.
You have not clarified if you ovulated.
The follicle size on day 12 was optimum for rupture, was ovulation confirmed ?
If yes, and you still have not conceived inspite of ovulating all 5 cycles, then next step is to go for a laparoscopy
This will evaluate the patency of the fallopian tubes.
If the tubes are blocked, then IVF should be strongly considered.
Otherwise, you can go for a couple of cycles more of stimulation and IUI.
As such, even after 6 cycles of stimulation / IUI, IVF is the next logical step.
Please bear in mind that miscarriages also can lead to tubal block
Is your husband's semen analysis
What has been your response in terms of ovulation to the stimulation cycles ?
Please write in with more details at -
In general, maintain an ideal BMI.
Take regular folic acid
supplements, and avoid stress.
All the best
Please feel free to discuss further.