Advice please


I'm not ttc but I know i would like to start in the near future, what are some things I should do. I was diagnosed with pcos when I was 17 I'm now about to be 21 they put me on metforman but I had horrible side effects from it so stopped taking it. I have my period every month but it's extremely painful to the point I can't move from my bed. If anyone has any advice for anything please share with me!!!