7 years TTC#2

Any success stories with similar long timeframe? Looking for hope...

Assisted fertility treatments failed, hubby has 'super sperm'. I'm now 35yrs with almost always regular monthly periods, mild endometriosis. Blessed to not have suffered any obvious miscarriages. Gyno has no idea why we're unable to conceive.

Have had stressful crappy jobs but have been in a great place for about 3yrs.

Baby#1 was 2-3 cycles and emergency C-section. My biggest wish is to give him a sibling.