Letrozle messed w cycle Clomid thinned lining

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Hey so im now CD 35 … SO late this cycle is wonky it was my first month taking Femara and estrace combined.

Previously I took Clomid and ovulated early and strong however I was advised that May have thinned my lining.

Like I ovulate on my own and we’ve been ttc for 14 months. Everything is unexplained at this point.

What would you recommended? Femara messes w my cycle , and Clomid makes my lining thin🙁