tubal reversal

Well this maybe a long shot but thought I'd try. Well I'm 27 and my hubby is 32 we have been together for 3 years. I have 4 kids 9,8,6,4 and none of them are hii he doesn't have any kids. I was a very gullible 17 year old and I made some wrong choices specially with guys each one is. Super long story. But I wouldn't change them for anything. After my last child was born I told the doctor to tie my tubes that i didn't want anymore babies with dead beats he wasn't to happy to do it I was only 23 he even questioned me why he was doing c section if I was sure. After it was done couple weeks went by I cried to my mom told her no man is gonna want me with 4 kids an tubes tieskeptically if he doesnt have any kids she told me god has a plan for me and that she sees me having a child with the man god choices for me. Well here I Am. I cry the time and I'm always depressed because we still haven't been able to save 2800 for the surgery :-( so that is why I'm here asking for your help maybe a dollar or .50 anything would help complete this dream of having a child with a man I love being able to give him that gift. He loves these kids as his own an would do anything for them, but I know in his heart he wants his own child.