Hi
Thanks for your query,
Eating slate pencils causes many problems like
anaemia,
dizziness, decreased appetite and abdominal cramps. It has been associated with women's health. But as your all results are normal ( yours 'sand your husband's) , i dont think there is any problem. However
HSG is necessary to see the status of your tubes. Some time subfertility remains unexplaiined in many cases.
So keep hope and get proper treatment. Best of luck
Hope it helps..