Totally depends on what your initial testing says. If your RE doesn't do sperm analysis initially, push them to do it. That way you'll know if there's any male factor issues. If there are, your RE will be more willing to discuss going right to IUI. If costs isn't an issue I think going right to IUI is worth it. But as pp said, depending on your testing going straight to IVF may be a conversation to have as well.