By button operation I think you mean a surgery on umbilicus
Next Steps
In that case tell her to try natural, she will conceive.
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Health Tips
Avoid papaya and pineapple
Avoid lifting weights and stress
Joining with husband in women down position with two pillows bellow your buttocks and sleep in the same position for 8 hours to prevent semen trickledown
Use washroom before joining and don’t use wash room for 8 hours after joining to avoid semen trickledown
Use Fertile periods method of joining from day 10-20 of periods