2nd midcycle U/S

So tomorrow (sat) morning I go in to the RE for a 2nd midcycle U/S...They said the first one(at cd13) didn't show any mature follicles and lining was thin...hoping this one shows us a larger folli and thicker lining!! If not we will have to hold off on IUI till next month, if so...no worries we know "we're gonna get it right eventually"!!