Weight , clomid , pcos

Gladis
I have been gaining weight like crazy these last 6 months i have been on 4 rounds of clomid,, my doctor said she could prescribe phentermine to lose weight but im not sure how that would affect me trying to conceive or what could i take to help lose weight!! I am at 208 from 180 6 months ago!! I am also doing gym but im not losing and i have pcos!! Help please