IUI again

Hope on the last try, hope for the money to be able to do the IUI, stress with bills, with my own family now. How will I get more sperm if this doesn’t work being in a same sex marriage so hard I have a son from when I was 16 I don’t want to be with a man to have a baby but what am I gonna do now me and my wife struggling to be happy with trying again. I’m on IUI number 4 and I don’t even have the money to do the cycle. Last vile of sperm! :( where do I turn now! I give up for years while I wait for my son to have a sister or brother. He will be a teenager before I have 2000$ extra to spend a month for another baby! Sorry guys my rant! I’m just so frustrated with life with everything.