2nd IUI TWW

Kelly
I'm a week into my TWW on our second <a href="https://glowing.com/glow-fertility-program">IUI</a> after a miscarriage in Feb. The first time, I felt soo tired all the time starting about now. But this time - no symptoms. My question is - are the pregnancy symptoms the same usually? Or can they vary? 
I turn 39 in a month and I'm putting a lot of hope on this <a href="https://glowing.com/glow-fertility-program">IUI</a> working out. But not feeling confident at all. 
Any experiences you can share will help!
Thanks!