Suggest Remedy For Infertility With History Of PCOS

Hi i m 26 years old i had an miscarriage with blighted ovum 1year ago now i have irregular cycle of 40/43 days cycle with PCOS. I m try to get pregnant from last month. I took letrol tablet from day 3-7. And my doctor suggest me to take ORADEXON and menogon injection on my next cycle.
Are these medicine harmfull or really work??