hi doctor i am 28 years old diagnosed as pco married for 4 years and had a healthy girl 3 years old am trying to conceive .. i had clomiphene citrate with metformin tabs for 6 months followed by 2 months fostimon injectiion.. so i missed my cycle for 46 days .all pregnancy test urine or blood werw negative .. also ultrasound (3 days ago). my doctor advice me to take primulate n tabs? what shall i do?