Try for another 6 months without stress and worry... it's very early that you are thinking all these and even seeked internet help! Stop all this and try to have a good relationship with monitoring her menstrual cycles like just keeping a note
Next Steps
Start Folvite 5 mg as once daily for your wife
Anytime in a day
Health Tips
Cut down carbohydrates
Maintain weight and don't turn fat
Do regular exercises at home
Control asthma properly
Lastly stop seeking help from Google!