Just need some advice

So I was on birth control for 12 years (got on it at 17 for irregular periods). I have been off since October 2016. My subsequent periods have been 28, 28, 44, and 48 days respectively. I am currently at 65 days and still no period and no positive pregnancy test. My doctor has run tests and everything is normal. So he said my next option is medicine to help me ovulate regularly. I am slightly overweight and am exercising and eating right and slowly loosing weight. So do I wait a little longer and see if it happens naturally or do I go on medicine? My husband and I are trying for our first and this has been a real stressor so far.