Although we can consult doctor for any such problem but on the other hand we have some yoga , by doing these Yoga asanas daily we can improve fertility by natural process.
Here are some very simple useful yoga asanas for infertility in women :
Anant asana (Lying Vishnu/Seshnag Pose) :
Butterfly asana
Marjariasana
Pashasana
Saithalyasana