TTC HELP!!!!

Stella

Ok so me and my husband have been trying for baby #3 we already have 2 beautiful daughters which made me think that it would still be possible to have another child but we have been trying sense July of 2019 with 2 misscariges and still no luck and i know I'm ovulating because I take ovulation test and keep track of when I am ovulating and talked to my obgyn and she wont put me on any medcine to help sense she thinks its my weight thats causeing the problem which maybe but I wanted maybe some advice from you guys sense she thinks I need to loose weight (I'm only 150 pounds)so what did you guys do to conceive I am open for advice and please no judgement and no hate on this post.