I told Quinn his story today.
I told him mommy wanted a baby so bad I would cry every day. Then I went to the doctor and the doctor said mommy's eggs were broke and I needed different eggs. So I asked my friend Jamie if I could have some of her eggs and she said yes. Then the doctor put those eggs in mommy's tummy and one grew into him.
Then I said we need to say thank you Jamie for giving mommy some eggs. To which Quinn said "Can we ask Jamie for some fruit?"
:)

All in all I think the conversation went well.