TTC baby#2

Has anyone tried to conceive baby #2 and tried all the things (Letrozole, clomid, iui and FSH shots) and still not work? Besides doing IVF has anyone gone the natural way and ended up pregnant? I tried all those things and no luck. Got pregnant month 1 of Letrozole with baby #1 and now we’re going on 1.5 years of trying for our second. I am getting VERY tired of all the doctors appointments and dumping money into trying over and over again with the same (negative) results. I made an appt for acupuncture, praying this will help. Has anyone seen a holistic doctor and found it to be more helpful? Just don’t know which direction to go anymore. Unfortunately iVF is not an option. (Mind you “nothing” is wrong- all tests and husbands sperm are great)