I'm pregnant again :) 18 weeks today - had the first scan at 15 weeks, and heard the heartbeat last week so touch wood everything's going fine.
Due date is 1 July, which means Daniel will be 21 months i.e. one-and-three-quarters. We've already embarked on a propaganda campaign "Look! baby!" so he's at least aware of what they are: helped by the fact that two couples we know have recently become parents for the first time, so he's had the chance to look at them up close, and seems to be at least moderately interested in them.