Hi all, we've been trying for 1 year now. All our test results have come back great apart from the thyroid (which 1st Dr said was a little high at 4.7 but nothing to worry about - 2nd opinion put me on levithyroxin straight away!). My periods are regular (range from 27 to 33 days) and as they can't see anything else wrong I'm hoping this medication will help. Has anyone had nothing else wrong and then had success with thyroxin? It's driving me crazy!