wondering what is the point??

Stephanie
I have PCOS and husband has borderline motility problems ( at first they said it was normal... now they are like well it's normal, but borderline being low).
We've done multiple clomid cycles which resulted in thin lining and a huge cyst. Currently I'm in a tww from letrozole 5mg where my eggs never got big enough for them to have me trigger - but I did ovulate per the progesterone test. 
I love my RE, and yesterday she told me that we have a 1-3% chance each cycle doing timed intercourse, so she advised upping the med dosage and doing <a href="https://glowing.com/glow-fertility-program">IUI</a> next time around will give us 5-8% chance. She said we should give another 3 cycles a try before going to <a href="https://glowing.com/glow-fertility-program">IVF</a>. 
<a href="https://glowing.com/glow-fertility-program">IVF</a> is a huge deal, I'm not taking it lightly - but it makes me feel like what is the point of these cycles if we have such low chances?! Everyone keeps telling me oh maybe you're pregnant this cycle! (I should know in about a week) but with a 1-3% chance this past cycle... ugh why get my hopes up? Any advice or stories to tell? Thanks