Same sex couple, no known fertility issues, normal-to-high AMH for age, used donor sperm.
We did 4 rounds of medicated IUI when I was 31, all BFNs.
First IVF round when 31 - very poor response to stims, 4 eggs collected, 2 mature, 2 high graded blasts. Fresh transfer BFN, frozen transfer chemical pregancny.
Second IVF round when 32. Frezee-all cycle. 6 eggs collected, all mature, all made to blast stage. Only 3 deemed suitable to freeze (good graded blasts). First FET when 32, BFP, live birth when I was 33. Second FET when 34, BFP, live bith when I was 35. Third FET when I was 36, BFN.
So, 4 IUIs, and 3 embryo transfers (7 attempts in total) for my first baby. It took 17 months between starting treament to getting pregnant. But I got pregnant first attempt with our second child, so it is all really luck.
Wishing you luck on your journey 💛