IUI vs IVF??

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Hi Ladies. My SO and I have just been diagnosed with unexplained infertility. I have moderate endometriosis and SO's semen analysis was good. I am a little bit confused about whether to try <a href="https://glowing.com/glow-fertility-program">IUI</a> first and then move onto <a href="https://glowing.com/glow-fertility-program">IVF</a> or just go straight to <a href="https://glowing.com/glow-fertility-program">IVF</a>. Has anyone been in this position? It will not be publicly funded but we can afford it if we save for 4 months. Any advice on how either are or any insight would be so appreciated. Thanks ladies x