In the same boat as you, OP. Used to have high earning/high powered job which I gave up to be a SAHM.
Job could take up anywhere from 60/70hrs per week and part time not an option in this particular field.
So I chose to have a child. I went in with eyes open and I knew that I would not be able to get back to work while DD is small and that is ok with me.
Although occassionally singing incy wincy for the 20th time that day does make me long for sensible conversation, I don't regret it.
Now, the reaction I get from other people.....
Its as if I've just told them that I am a mass murderer or something. The "oh right, well" and the stare generally says it all.
Met a former colleague yesterday when I was in town shopping with DD. He made small talk and just as he was about to walk away, he turned and said: "why on earth could you just walk away and ruin your career like that? To have a baby?!?".
Honestly didn't know what to say or where to look.
I don't feel bad about giving up my career as I worked hard and contributed plenty in every way. But why are others making me feel bad about it? Defies belief.
Have good friend who was pregnant same time as me. She has gone back to work and now sneers at me for staying at home. Even she is making me feel bad about it (she wanted to be Earth Mother but felt she failed at it and ran off back work saying: "thank god for that - so rubbish being a SAHM"!).
Anyway, OP don't feel bad about your choice. I don't but a continually staggered at the reaction of others.
We're doing the very best for our DCs and thats all that matters.