Clomid

Well just got back from the doctor and I have to start clomid because my body isn't producing enough estrogen to release and egg every month or sustain early pregnancy. I have had 3 miscarriages since October of last year and it's good to finally have some answers. Now I just need AF to show up to start... I haven't picked up the prescription just yet but does anyone know how much it will set me back and does anyone have any advice or success stories?