first of all I would like to inform you that IVF/ IUI are widely used these days but in your case you have been married for just for 1 yr. I think you should try natural way first. try to reduce your weight natural way(avoid medicines) .
Start with small changes in your diet and little walk. If you reduce your BMI to 24 your hormones will be appropriate to support pregnancy
Dont give up
feel free to ask for any further queries.