Hi welcome to Health care magic forum. Your case is an interesting one, as you had a boy already, you don't worry, there are 100% chances of conception. Causes of
infertility are
anxiety,
anaemia, etc besides harmons disturbances which in your case is not applicable. Glycephage is a good drug for infertility but i don't prefer for an invein prolonged period. I advise you to consult a gynaecologist 2 months before his arrival, if she also priscribes the glycephage along with other medicines you can use it.
Besides i advise you some diet recommendations as take more of green leafy vegetables, pulses, sprouts, milk, egg, meat, fruits, juices, and dry fruits which tend to increase the fertility rate.
Diversion procedures like,
yoga,
meditation, reading books, and hearing music will help diversion from tensions of conception.
When he comes try to have sex between 11th to 20th day after period. Abstence in the 1st 10 days. have sex by male above position, and lie in that position for some time after sex. in the last 10 days you can have sex as you wish.
Wishing for a beautiful recovery and thanks for calling.