IUI after trigger

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My doctor performed my <a href="https://glowing.com/glow-fertility-program">IUI</a> 2 days after i had my triggee shot. I had it on wednesday night around 9-10 pm and then they performed <a href="https://glowing.com/glow-fertility-program">IUI</a> around 1:45 pm on friday. Do they normally peform it 2 days after taking trigger or is it just my doctor who did that?