Letrozole when ovulating regularly

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Hi! I was just wondering if anyone has been put on Letrozole for an

<a href="https://glowing.com/glow-fertility-program">IUI</a>

even though you ovulate regularly? I’m supposed to start my first

<a href="https://glowing.com/glow-fertility-program">IUI</a>

this month and my RE wants to put me on Letrozole for 5 days and then the trigger shot but was wondering if it’s common to be put on Letrozole even though you ovulate regularly! Thanks in advance 🙂