Letrizole and low E2

Did anyone have a successful <a href="https://glowing.com/glow-fertility-program">IUI</a> with letrizole but a low E2. My doctor said the letrizole can lower the E2 but I’m worried. My e2 was only 120 the day before <a href="https://glowing.com/glow-fertility-program">IUI</a>... do u think I have a chance?