Ok then, I have a doctor's appointment this morning to confirm what the big blue cross on the little white stick is telling me (and DP). 
I'm 29 and moved in with DP and his 2 DSs (5 & 12) 13 months ago. DP proposed last Xmas and we've sort of been trying for the last 6 months - but now it looks like it might actually be happening!!!
Question is, how/when do I tell the boys? They both like me and gave a huge thumbs up to their dad for proposing (eldest gave his approval to the ring), and they've both mentioned about if we added to our number, but when is a good time to do it?
I am tempted to leave it a couple of weeks, if only to tell them the day before DP's ex who walked out on them gets married
(wanted a little devil there really), but am I better telling them sooner rather than later? Of course, if I'm about to start hogging the bathroom in the next couple of weeks, the eldest might guess...
Any ideas?