[usr] I was so surprised when I found I was pregnant [sys] Oh wow, congratulations! I'm guessing you weren't expecting? [usr] oh no not at all but I am happy about it [qst] ask me for further details [bhv] I'm in a positive mood, please congratulate me and praise me.
I'm so glad! When are you due?
a situation where I might have felt surprised would have to be when I found out that I was pregnant for the first time