When I was younger all I wanted to do was be a SAHM , DH and I got together when we were just 16 and right from the start we planned a large family. Everything was going great we had 5 children dh worked and i looked after them . I was one of those slightly sickening people who baked and sewed and did sensory trays with my toddlers. 
Then 2 years ago I just suddenly changed , I have always been anxious and had panic attacks (since i was very Young ) but I for some reason 2 years ago it got totally on top of me and I began to be unable to cope with the things I did and loved before.
I told dh that I no longer wanted to be at home and he basically changed his life overnight to accommodate this. We both owned the business he worked in so I actually took a job there and started working full time (he now works 7am- 2pm and I do 10am-6pm). We have a part time nanny who does th middle hours for our non school age child.
The thing is the last few months I realised how bad things had become. I finally saw a doctor and started antidepressants and it is like a huge cloud has been lifted. I now LOVE every minute I get with the children, I have started up all my hobbies again I feel like the old me again.
The thing is now I hardly see them, I am no longer feeling depressed but I am realising how exhausting it is for both me and dh to have a large family and deal with the business and the cost of childcare is much higher than any benefit I bring to the business, it is financially a loss for me to be working .
I found out a couple of weeks ago that I am pregnant with dc6 and I am overjoyed. I want to say to pretty much that I have changed my mind and I want to go back to how things were.
I feel like I am being unreasonable though to basically now say that I want him to a again change his life on a whim of mine.
Aibu to ask this of him?