New to the boards...

We have been ttc baby 2 for 2 years baby number 1 is 3 yrs old. I tried to conceive with my ex husband for 3 yrs with no luck then 3 yrs after dating my current dh we conceived our ds first month off bc. I have endometrious and have had my 4th lap done a year ago and still no luck. Dh has has a sa and everything is fine. Next step re says is iui while taking letrozole but we can't afford the fees and our insurance doesnt cover infertility. I am on second day of spotting 13dpo af due tomorrow.