Hi ! I Am 25 Y/o Now And I Wanna

hi ! I am 25 y/o now and I wanna conceive already so my partner and I is sexualy active. I was diagnosed with PCOS since last nov 2015 and had my transvaginal ultrasound again this month og august 2016, and still with PCOS., but i didn't meet an OB yet, but i have friend with PCOS too but not sexually active and her OB prescribed her an althea and so i am also taking althea, i am on tha 7 day of taking it.. and i wanna take metformin too thinking that maybe i will be like other women with PCOS that conceived by taking metformin.. is it good that i am taking those medicine without prescription? i am 4 months not getting my period but with negative result.. please help, or any suggestions will do.. Thank you!