Be careful

I am a mother of one child been in a relationship for 16 years our child is nearly 14 and my husband and son are my world. I mentioned to my husband that I’d like another child now our son is older at the time he was nearly 4, but young enough to grow and blossom with a sibling also have a friend.
We started trying which was great 😉 the love making the love for eachother the closeness was amazing after a year of trying with no luck we both put it down to stresses of his long hours at work and genral daily stresses. We carried on trying 2.5 years passed and nothing so after a long conversation we visited our gp we was sent for test at the local hospital we went back and forth for months. After all the test we saw our consultant for the last time and it was the news we didn’t want to hear he read my results and explained what they meant then my husbands I felt awful for him his face went from happy to my world has just collapsed the consultant had just told him to cherrish his only child because he’s very doubtful he’ll ever father another child. We cried together we talked and said we can still try drs do get it wrong sometimes. We continued having regular intercourse and tried staying positive our dreams of having another child was fading month by month year by year 9 years later still no child its become a strain so I suggested a private sperm donor which I never thought he’d agree too in a million years we talked about it and then left it then I asked again and he was still supportive of the idea to my surprise. I signed up to a online website put what we was looking for we both had our input and I wouldn’t do anything without his full support has I know it must be so hard to agree to use a sperm donor anyhow I found a guy who I talked to asked millions of question made sure he was clear of any infections and I told him I only wanted AI no sexual contact has I’m not comfortable with that has I’d feel like I’ve betrayed my husband we agreed on the terms I constantly asked my husband if he was definatley 100% comfortable he always respinded he was has long has theirs no physical contact he will support me so we could have a second child. 6 months after meeting the donor the process begins we’d travel to the donors home town and check into a hotel the donor would come do his handy work in the sterile pot wish me luck and leave I constantly ask my husband are you OK with this because theirs no way I’d carry on without his full support we did the First donation and after Two days I tried having sex with my husband I’d tickle his back, kiss his neck, preform oral sex and so forth I got the feeling something was wrong he wasn’t his self so I gave up and over the 3 weeks I’ve tried again he brushes me off I ask him is everything ok he says yes he’s just tired long working hours next donation and same again he becomes distant can’t bare to touch me I try getting him in the mood and the rejection is a horrible feeling when you’ve always had a good close relationship with brilliant communication, respect, love and honesty to become distant rejected within two moths is awful so I ask him whats up why Dont you touch me or want to be intermate he responds you just Dont Fuc*ing get it do you I can’t be sexual eotb you because you’ve had another mans sperm inside of you.
I always said I’d call it off if he wasn’t 100% supportive now this has broken us he’s moving out and I feel like I’ve let him down. So if your going to use a sperm donor please make sure your relationship is strong enough to survive I though ours was.