You have 2 problems that dont cause ovulation.First pcos
and then hypothyroidsim.Let me be frank,you will require at least a few months of treatment(which you are correctly getting)before you can get pregnant.Until your thyroid is under control and pcos also you wont get regular monthly period and wont ovulate.So first concentrate on getting thyroid normal and continue metformin
.You wil get ur periods after 7-10 days of duphaston
so please be patient.You will require the help of a infertility
specialist to help you concieve.But first your hromone levels have to regularise.